Fix some boilerplate snippets.

voussoir/argparse.sublime-snippet

@@ -15,8 +15,9 @@ def main(argv):
     parser.add_argument('--boolkwarg', action='store_true')
     parser.set_defaults(func=$1_argparse)
 
-    args = parser.parse_args(argv)
-    args.func(args)
+    with opnot_context:
+        args = parser.parse_args(argv)
+        return args.func(args)
 
 ]]></content>
     <tabTrigger>argparse</tabTrigger>

voussoir/betterhelp.sublime-snippet

@@ -1,8 +1,10 @@
 <snippet>
     <content><![CDATA[
-'''
 from voussoirkit import betterhelp
 
+# replace the following lines:
+# args = parser.parse_args(argv)
+# return args.func(args)
 return betterhelp.single_main(argv, parser, __doc__)
 ]]></content>
     <tabTrigger>betterhelp</tabTrigger>