Fix tox 'bindep' environment
tox.ini is hard-coded to always use the 'test' profile for bindep;
instead, let tox get the profile from the posargs
Closes-bug:
@@ -165,7 +165,7 @@ commands = bandit-baseline -r cinder -n5 -x cinder/tests/* -ii -ll
# further relies on "tox.skipsdist = True" above).
basepython = python3
deps = bindep
-commands = bindep test
+commands = bindep {posargs}
usedevelop = False
[flake8]
