Update copyright file template example + fix Makefile comment style

Makefile

@@ -90,17 +90,15 @@ $(VSCODE_EXT_PREFIX)/node_modules:
 vscode_ext: | validate_npm $(VSCODE_EXT_PREFIX)/node_modules
 	$(NPM) run $(VSCODE_EXT_NPM_SCRIPT) --prefix=$(VSCODE_EXT_PREFIX)
 
-ifneq "$(DEBUG)" "1"
 	cp $(SRC_DIR)/LICENCE $(VSCODE_EXT_PREFIX)/LICENSE
 	cp $(SRC_DIR)/resources/icon.png $(VSCODE_EXT_DIST_DIR)/icon.png
 
 	cd $(VSCODE_EXT_PREFIX) && \
 	$(VSCE) $(VSCE_SUBCOMMAND) $(VSCE_FLAGS) $(subst v,,$(PROJECT_VERS_NO_COMMITN))
-endif
 
 
 #
-# Remove build directory
+# Remove build artifacts
 #
 
 clean:

examples/templates/file/copyright

@@ -1,12 +1,20 @@
 {%- set lang = lang_by_filename(filename=BUILTIN.file_name) -%}
 {%- if lang != "unknown" -%}
 {%- set com = comment_by_lang(lang_id=lang) -%}
+{%- if com.0 | length <= 0 -%}
+{{ com.1 }}
+{%- else -%}
 {{ com.0 }}
+{%- endif %}
 {{ com.1 }}   Copyright (c) {{ year() }} {{ copyright_holders }}.
 {{ com.1 }}   All Rights Reserved.
 {{ com.1 }}
 {{ com.1 }}   See the LICENCE file for more information.
+{% if com.2 | length <= 0 -%}
+{{ com.1 }}
+{%- else -%}
 {{ com.2 }}
+{%- endif %}
 {%- else -%}
 Copyright (c) {{ year() }} {{ copyright_holders }}.
 All Rights Reserved.

src/templater/functions/language_specifics.rs

@@ -125,7 +125,7 @@ macro_rules! style {
 }
 
 /// An array of language id-comment style pairs.
-const COMMENTS_BY_LANG_ID: [(&str, CommentStyle); 42] = [
+const COMMENTS_BY_LANG_ID: [(&str, CommentStyle); 43] = [
     style!("batch", ("", "REM", "")),
     style!("c", ("/*", " *", " */")),
     style!("clojure", ("", ";;", "")),
@@ -150,6 +150,7 @@ const COMMENTS_BY_LANG_ID: [(&str, CommentStyle); 42] = [
     style!("kotlin", ("/*", " *", " */")),
     style!("less", ("/*", " *", " */")),
     style!("lua", ("", "--", "")),
+    style!("makefile", ("", "#", "")),
     style!("markdown", ("", "", "")), // markdown doesn't really have comments
     style!("perl", ("", "#", "")),
     style!("python", ("", "#", "")),