use https header when available

Leave http://ajt.ktug.org/ url intact

README

@@ -12,7 +12,7 @@ https://github.com/aminophen/dviasm
 
 It is fully documented at
 
-http://tug.org/TUGboat/Articles/tb28-2/tb89cho.pdf (TUGboat)
+https://tug.org/TUGboat/Articles/tb28-2/tb89cho.pdf (TUGboat)
 http://ajt.ktug.kr/assets/2008/5/1/0201cho.pdf (Asian Journal of TeX)
 
 Previous maintainer of DVIasm: Khaled Hosny

dviasm.1

@@ -105,7 +105,7 @@ This option would be useful for example when using CJK package.
 Documentation of
 .B DVIasm
 by the original author Jin-Hwan Cho is published as:
-     http://tug.org/TUGboat/Articles/tb28-2/tb89cho.pdf (TUGboat)
+     https://tug.org/TUGboat/Articles/tb28-2/tb89cho.pdf (TUGboat)
      http://ajt.ktug.kr/assets/2008/5/1/0201cho.pdf (Asian Journal of TeX)
 .SH AUTHORS
 The first version was written in Python 2 by Jin-Hwan Cho in 2007.

dviasm.py

@@ -19,7 +19,7 @@
 # GNU General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License
-# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
 import sys, os.path
 from optparse import OptionParser
@@ -1169,7 +1169,7 @@ def ProcessOptions():
 DVIasm is a Python script to support changing or creating DVI files
 via disassembling into text, editing, and then reassembling into
 binary format. It is fully documented at
-  http://tug.org/TUGboat/Articles/tb28-2/tb89cho.pdf
+  https://tug.org/TUGboat/Articles/tb28-2/tb89cho.pdf
   http://ajt.ktug.kr/assets/2008/5/1/0201cho.pdf
 
 Please report bugs to