On my environment, the cinderclient CLI reports:
/usr/lib/python2.7/site-packages/requests/__init__.py:91:
RequestsDependencyWarning: urllib3 (1.25.6) or
chardet (2.2.1) doesn't match a supported version!
When running any command.
This is fairly irritating to have pop up in the
context of cinder bash-completion calls, i.e.,
when you hit tab after "cinder" at the shell.
Just hide errors there rather than pollute the
screen with them.
Change-Id: I40019dcc845015de8cfe8165656829cdaa446666
7f282a5ea4