Let autoprogram-cliff know who's running

The autoprogram-cliff directive has a habit of producing text like

  This command is provided by the $me plugin.

which doesn't make any sense.

Cliff recently added a config option whereby consumers can let it know
who $me is so it can suppress that message where appropriate (while
still producing it for $plugin, as intended).

Depends-On: https://review.opendev.org/692464
Change-Id: I0d580fb1d34dd56740eb6d976caa795e0e951047

Author: Eric Fried

doc/source/conf.py

@@ -263,6 +263,9 @@
     '--help', '--format', '--column', '--max-width', '--fit-width',
     '--print-empty', '--prefix', '--noindent', '--quote']
 
+# Prevent cliff from generating "This command is provided by the
+# python-openstackclient plugin."
+autoprogram_cliff_app_dist_name = 'python-openstackclient'
 
 # -- Options for sphinxcontrib.apidoc ----------------------------------------