Remove leading space characters in YAML frontmatter

Remove leading space characters so directly loading the frontmatter text
with `yaml.safe_load` doesn't throw an exception.

test/annexB/built-ins/String/prototype/anchor/B.2.3.2.js

@@ -5,12 +5,12 @@
 // http://mathias.html5.org/tests/javascript/string/
 
 /*---
- description: >
-     String.prototype.anchor returns a string of HTML describing a single HTML
-     anchor element. The element's content is the `this` value of the function
-     invocation, coerced to a string. If specified, the first argument will be
-     coerced to a string, escaped, and set as the element's `name` attribute.
- es6id: B.2.3.2
+description: >
+    String.prototype.anchor returns a string of HTML describing a single HTML
+    anchor element. The element's content is the `this` value of the function
+    invocation, coerced to a string. If specified, the first argument will be
+    coerced to a string, escaped, and set as the element's `name` attribute.
+es6id: B.2.3.2
 ---*/
 
 assert.sameValue('_'.anchor('b'), '<a name="b">_</a>');

test/annexB/built-ins/String/prototype/big/B.2.3.3.js

@@ -5,11 +5,11 @@
 // http://mathias.html5.org/tests/javascript/string/
 
 /*---
- description: >
-     String.prototype.big returns a string of HTML describing a single HTML
-     big element. The element's content is the `this` value of the function
-     invocation, coerced to a string.
- es6id: B.2.3.3
+description: >
+    String.prototype.big returns a string of HTML describing a single HTML
+    big element. The element's content is the `this` value of the function
+    invocation, coerced to a string.
+es6id: B.2.3.3
 ---*/
 
 assert.sameValue('_'.big(), '<big>_</big>');

test/annexB/built-ins/String/prototype/blink/B.2.3.4.js

@@ -5,11 +5,11 @@
 // http://mathias.html5.org/tests/javascript/string/
 
 /*---
- description: >
-     String.prototype.blink returns a string of HTML describing a single HTML
-     blink element. The element's content is the `this` value of the function
-     invocation, coerced to a string.
- es6id: B.2.3.4
+description: >
+    String.prototype.blink returns a string of HTML describing a single HTML
+    blink element. The element's content is the `this` value of the function
+    invocation, coerced to a string.
+es6id: B.2.3.4
 ---*/
 
 assert.sameValue('_'.blink(), '<blink>_</blink>');

test/annexB/built-ins/String/prototype/bold/B.2.3.5.js

@@ -5,11 +5,11 @@
 // http://mathias.html5.org/tests/javascript/string/
 
 /*---
- description: >
-     String.prototype.bold returns a string of HTML describing a single HTML
-     bold element. The element's content is the `this` value of the function
-     invocation, coerced to a string.
- es6id: B.2.3.5
+description: >
+    String.prototype.bold returns a string of HTML describing a single HTML
+    bold element. The element's content is the `this` value of the function
+    invocation, coerced to a string.
+es6id: B.2.3.5
 ---*/
 
 assert.sameValue('_'.bold(), '<b>_</b>');

test/annexB/built-ins/String/prototype/fixed/B.2.3.6.js

@@ -5,11 +5,11 @@
 // http://mathias.html5.org/tests/javascript/string/
 
 /*---
- description: >
-     String.prototype.fixed returns a string of HTML describing a single HTML
-     teletype text element. The element's content is the `this` value of the
-     function invocation, coerced to a string.
- es6id: B.2.3.6
+description: >
+    String.prototype.fixed returns a string of HTML describing a single HTML
+    teletype text element. The element's content is the `this` value of the
+    function invocation, coerced to a string.
+es6id: B.2.3.6
 ---*/
 
 assert.sameValue('_'.fixed(), '<tt>_</tt>');

test/annexB/built-ins/String/prototype/fontcolor/B.2.3.7.js

@@ -5,13 +5,13 @@
 // http://mathias.html5.org/tests/javascript/string/
 
 /*---
- description: >
-     String.prototype.fontcolor returns a string of HTML describing a single
-     HTML font element. The element's content is the `this` value of the
-     function invocation, coerced to a string. If specified, the first argument
-     will be coerced to a string, escaped, and set as the element's `color`
-     attribute.
- es6id: B.2.3.7
+description: >
+    String.prototype.fontcolor returns a string of HTML describing a single
+    HTML font element. The element's content is the `this` value of the
+    function invocation, coerced to a string. If specified, the first argument
+    will be coerced to a string, escaped, and set as the element's `color`
+    attribute.
+es6id: B.2.3.7
 ---*/
 
 assert.sameValue('_'.fontcolor('b'), '<font color="b">_</font>');

test/annexB/built-ins/String/prototype/fontsize/B.2.3.8.js

@@ -5,13 +5,13 @@
 // http://mathias.html5.org/tests/javascript/string/
 
 /*---
- description: >
-     String.prototype.fontsize returns a string of HTML describing a single
-     HTML font element. The element's content is the `this` value of the
-     function invocation, coerced to a string. If specified, the first argument
-     will be coerced to a string, escaped, and set as the element's `size`
-     attribute.
- es6id: B.2.3.8
+description: >
+    String.prototype.fontsize returns a string of HTML describing a single
+    HTML font element. The element's content is the `this` value of the
+    function invocation, coerced to a string. If specified, the first argument
+    will be coerced to a string, escaped, and set as the element's `size`
+    attribute.
+es6id: B.2.3.8
 ---*/
 
 assert.sameValue('_'.fontsize('b'), '<font size="b">_</font>');

test/annexB/built-ins/String/prototype/italics/B.2.3.9.js

@@ -5,11 +5,11 @@
 // http://mathias.html5.org/tests/javascript/string/
 
 /*---
- description: >
-     String.prototype.italics returns a string of HTML describing a single HTML
-     italic element. The element's content is the `this` value of the function
-     invocation, coerced to a string.
- es6id: B.2.3.9
+description: >
+    String.prototype.italics returns a string of HTML describing a single HTML
+    italic element. The element's content is the `this` value of the function
+    invocation, coerced to a string.
+es6id: B.2.3.9
 ---*/
 
 assert.sameValue('_'.italics(), '<i>_</i>');

test/annexB/built-ins/String/prototype/link/B.2.3.10.js

@@ -5,12 +5,12 @@
 // http://mathias.html5.org/tests/javascript/string/
 
 /*---
- description: >
-     String.prototype.link returns a string of HTML describing a single HTML
-     link element. The element's content is the `this` value of the function
-     invocation, coerced to a string. If specified, the first argument will be
-     coerced to a string, escaped, and set as the element's `href` attribute.
- es6id: B.2.3.10
+description: >
+    String.prototype.link returns a string of HTML describing a single HTML
+    link element. The element's content is the `this` value of the function
+    invocation, coerced to a string. If specified, the first argument will be
+    coerced to a string, escaped, and set as the element's `href` attribute.
+es6id: B.2.3.10
 ---*/
 
 assert.sameValue('_'.link('b'), '<a href="b">_</a>');

test/annexB/built-ins/String/prototype/small/B.2.3.11.js

@@ -5,11 +5,11 @@
 // http://mathias.html5.org/tests/javascript/string/
 
 /*---
- description: >
-     String.prototype.small returns a string of HTML describing a single HTML
-     small print element. The element's content is the `this` value of the
-     function invocation, coerced to a string.
- es6id: B.2.3.11
+description: >
+    String.prototype.small returns a string of HTML describing a single HTML
+    small print element. The element's content is the `this` value of the
+    function invocation, coerced to a string.
+es6id: B.2.3.11
 ---*/
 
 assert.sameValue('_'.small(), '<small>_</small>');

test/annexB/built-ins/String/prototype/strike/B.2.3.12.js

@@ -5,11 +5,11 @@
 // http://mathias.html5.org/tests/javascript/string/
 
 /*---
- description: >
-     String.prototype.strike returns a string of HTML describing a single HTML
-     strikethrough element. The element's content is the `this` value of the
-     function invocation, coerced to a string.
- es6id: B.2.3.12
+description: >
+    String.prototype.strike returns a string of HTML describing a single HTML
+    strikethrough element. The element's content is the `this` value of the
+    function invocation, coerced to a string.
+es6id: B.2.3.12
 ---*/
 
 assert.sameValue('_'.strike(), '<strike>_</strike>');

test/annexB/built-ins/String/prototype/sub/B.2.3.13.js

@@ -5,11 +5,11 @@
 // http://mathias.html5.org/tests/javascript/string/
 
 /*---
- description: >
-     String.prototype.sub returns a string of HTML describing a single HTML
-     subscript element. The element's content is the `this` value of the
-     function invocation, coerced to a string.
- es6id: B.2.3.13
+description: >
+    String.prototype.sub returns a string of HTML describing a single HTML
+    subscript element. The element's content is the `this` value of the
+    function invocation, coerced to a string.
+es6id: B.2.3.13
 ---*/
 
 assert.sameValue('_'.sub(), '<sub>_</sub>');

test/annexB/built-ins/String/prototype/sup/B.2.3.14.js

@@ -5,11 +5,11 @@
 // http://mathias.html5.org/tests/javascript/string/
 
 /*---
- description: >
-     String.prototype.sup returns a string of HTML describing a single HTML
-     superscript element. The element's content is the `this` value of the
-     function invocation, coerced to a string.
- es6id: B.2.3.14
+description: >
+    String.prototype.sup returns a string of HTML describing a single HTML
+    superscript element. The element's content is the `this` value of the
+    function invocation, coerced to a string.
+es6id: B.2.3.14
 ---*/
 
 assert.sameValue('_'.sup(), '<sup>_</sup>');

test/language/expressions/object/method-definition/generator-no-yield.js

@@ -2,11 +2,11 @@
 // This code is governed by the BSD license found in the LICENSE file.
 
 /*---
-  description: >
-      Generators declared with GeneratorMethod syntax do not require a
-      `yield` expression.
-  features: [generators]
-  es6id: 14.4
+description: >
+    Generators declared with GeneratorMethod syntax do not require a
+    `yield` expression.
+features: [generators]
+es6id: 14.4
 ---*/
 
 var result;

test/language/expressions/object/method-definition/generator-return.js

@@ -2,10 +2,10 @@
 // This code is governed by the BSD license found in the LICENSE file.
 
 /*---
-  description: >
-      `return` is a valid statement within generator function bodies.
-  features: [generators]
-  es6id: 14.4
+description: >
+    `return` is a valid statement within generator function bodies.
+features: [generators]
+es6id: 14.4
 ---*/
 
 var result;

test/language/expressions/object/method-definition/yield-as-expression-with-rhs.js

@@ -2,10 +2,10 @@
 // This code is governed by the BSD license found in the LICENSE file.
 
 /*---
-  description: >
-      `yield` is a valid expression within generator function bodies.
-  features: [generators]
-  es6id: 14.4
+description: >
+    `yield` is a valid expression within generator function bodies.
+features: [generators]
+es6id: 14.4
 ---*/
 
 var iter, result;

test/language/expressions/object/method-definition/yield-as-expression-without-rhs.js

@@ -2,10 +2,10 @@
 // This code is governed by the BSD license found in the LICENSE file.
 
 /*---
-  description: >
-      `yield` is a valid expression within generator function bodies.
-  features: [generators]
-  es6id: 14.4
+description: >
+    `yield` is a valid expression within generator function bodies.
+features: [generators]
+es6id: 14.4
 ---*/
 
 var iter, result;

test/language/expressions/object/method-definition/yield-as-function-expression-binding-identifier.js

@@ -2,12 +2,12 @@
 // This code is governed by the BSD license found in the LICENSE file.
 
 /*---
-  description: >
-      `yield` may be used as the binding identifier of a function expression
-      within generator bodies.
-  features: [generators]
-  es6id: 14.1
-  flags: [noStrict]
+description: >
+    `yield` may be used as the binding identifier of a function expression
+    within generator bodies.
+features: [generators]
+es6id: 14.1
+flags: [noStrict]
 ---*/
 
 var result;

test/language/expressions/object/method-definition/yield-as-generator-method-binding-identifier.js

@@ -2,10 +2,10 @@
 // This code is governed by the BSD license found in the LICENSE file.
 
 /*---
-  description: >
-      `yield` is a valid BindingIdentifier for GeneratorMethods
-  features: [generators]
-  es6id: 12.1.1
+description: >
+    `yield` is a valid BindingIdentifier for GeneratorMethods
+features: [generators]
+es6id: 12.1.1
 ---*/
 
 var iter, result;

test/language/expressions/object/method-definition/yield-as-identifier-in-nested-function.js

@@ -2,12 +2,12 @@
 // This code is governed by the BSD license found in the LICENSE file.
 
 /*---
-  description: >
-      `yield` is not a reserved keyword within normal function bodies declared
-      within generator function bodies.
-  features: [generators]
-  es6id: 12.1.1
-  flags: [noStrict]
+description: >
+    `yield` is not a reserved keyword within normal function bodies declared
+    within generator function bodies.
+features: [generators]
+es6id: 12.1.1
+flags: [noStrict]
 ---*/
 
 var result;

test/language/expressions/object/method-definition/yield-as-literal-property-name.js

@@ -2,11 +2,11 @@
 // This code is governed by the BSD license found in the LICENSE file.
 
 /*---
-  description: >
-      `yield` may be used as a literal property name in an object literal
-      within generator function bodies.
-  features: [generators]
-  es6id: 12.1.1
+description: >
+    `yield` may be used as a literal property name in an object literal
+    within generator function bodies.
+features: [generators]
+es6id: 12.1.1
 ---*/
 
 var result;

test/language/expressions/object/method-definition/yield-as-logical-or-expression.js

@@ -2,13 +2,13 @@
 // This code is governed by the BSD license found in the LICENSE file.
 
 /*---
-  description: >
-      `yield` expressions are not LogicalOrExpressions.
-  features: [generators]
-  es6id: 12.1.1
-  negative:
-    phase: parse
-    type: SyntaxError
+description: >
+    `yield` expressions are not LogicalOrExpressions.
+features: [generators]
+es6id: 12.1.1
+negative:
+  phase: parse
+  type: SyntaxError
 ---*/
 
 $DONOTEVALUATE();