UW-655 Get program name from sys.argv

[maddenp-noaa]

Synopsis

Old behavior:

$ uw config --version
uw config version 2.3.1 build 0
$ uw template --version
uw template version 2.3.1 build 0

config and template should not appear, as the version number belongs to uw, not to a mode.

New behavior:

$ uw config --version
uw version 2.3.1 build 0
$ uw template --version
uw version 2.3.1 build 0

Type

• Bug fix (corrects a known issue)

Impact

• This is a non-breaking change (existing functionality continues to work as expected)

Checklist

• I have added myself and any co-authors to the PR's Assignees list.
• I have reviewed the documentation and have made any updates necessitated by this change.