Steps to Reproduce:

Help message:
Usage: koji add-pkg [options] tag package [package2 ...]
(Specify the --help global option for a list of other help options)

Options:
-h, --help show this help message and exit
--force Override blocks if necessary
--owner=OWNER Specify owner
--extra-arches=EXTRA_ARCHES
Specify extra arches

Run 'add-pkg tag pkg'

Actual result:

koji: error: Please specify an owner for the package(s)

Expected result:

Help message has an owner as mandatory, not as an option.