Fix the format command-line
Fix the format command-line

The command-line should be marked follow [1]
as consistent with their semantic meaning.

[1] https://docs.openstack.org/doc-contrib-guide/rst-conv/inline-markups.html#command

Change-Id: Icb6aec0598cd8e575e26fa05c342b56cf6f81591

openstack/ironic,openstack/ironic