
Because of 'start_version' parameter in decorator here [0]
we won't have metadata attr in args using api versions from 3.0 to 3.21.
This patch changes getting metadata from args logic for compatibility with
the api versions 3.0 - 3.21.
[0] - b73b393240/cinderclient/v3/shell.py (L1237)
Change-Id: I4aa099556c57c49e9ad74fe80e5591d738cf3aa0
Closes-Bug: #1659561