Set always_complete_options to "long"

pmb/parse/arguments.py

@@ -479,7 +479,7 @@ def arguments():
                                       " invalid")
 
     if argcomplete:
-        argcomplete.autocomplete(parser)
+        argcomplete.autocomplete(parser, always_complete_options="long")
 
     # Use defaults from the user's config file
     args = parser.parse_args()