helptext template should return args.func(args) value.

SublimeSnippets/helptext.sublime-snippet

@@ -28,7 +28,7 @@ DOCSTRING = betterhelp.add_previews(DOCSTRING, SUB_DOCSTRINGS)
 @betterhelp.subparser_betterhelp(parser, main_docstring=DOCSTRING, sub_docstrings=SUB_DOCSTRINGS)
 def main(argv):
     args = parser.parse_args(argv)
-    args.func(args)
+    return args.func(args)
 
 ]]></content>
 <tabTrigger>helptext</tabTrigger>