fixup! Emulate get_cmd_help missing from osc 1.x

dput.py

@@ -37,6 +37,7 @@ def do_dput(self, subcmd, opts, *args):
 
     # osc 1.x removes get_cmd_help, inject a replacement
     if not hasattr(self, "get_cmd_help"):
+        import argparse
         def format_help(subcmd, opts=None, *args):
             for action in self.argparser._actions:
                 if not isinstance(action, argparse._SubParsersAction):