Merge pull request #56 from arewm/nosubcommands

add nosubcommands directive to general usage

Author: dpryan79

sphinxarg/ext.py

@@ -477,7 +477,8 @@ def run(self):
                 items.append(self._nested_parse_paragraph(result['description']))
         items.append(nodes.literal_block(text=result['usage']))
         items.extend(print_action_groups(result, nested_content, markDownHelp))
-        items.extend(print_subcommands(result, nested_content, markDownHelp))
+        if 'nosubcommands' not in self.options:
+            items.extend(print_subcommands(result, nested_content, markDownHelp))
         if 'epilog' in result and 'noepilog' not in self.options:
             items.append(self._nested_parse_paragraph(result['epilog']))