Make consistency group timeout exception message more robust

In case the CG name is None, use the ID instead so we have
context on the failure.

Also, add the current CG status to the timeout message.

Change-Id: Ifb579d319f4230a662a218f479070a420d7ba38e
Closes-Bug: #1547056
1 file changed
tree: dda988ba92236dc77ed4c1700e623abb2b87edef
  1. manila_tempest_tests/