Comment 5 for bug 1219197

Reviewed: https://review.openstack.org/44589
Committed: http://github.com/openstack/cinder/commit/91e2466f2dd9dcdcaf1d443be66b51c861182784
Submitter: Jenkins
Branch: master

commit 91e2466f2dd9dcdcaf1d443be66b51c861182784
Author: Kui Shi <email address hidden>
Date: Sat Aug 31 19:24:38 2013 +0800

    Add venv wrapper for check_uptodate.sh

    tools/conf/check_uptodate.sh is added in run_tests.sh

    For simple, run "run_tests.sh -p" will call it, and get following error:

    Failed to collect options from module
    cinder.volume.drivers.san.hp.hp_3par_common: No module named hp3parclient

    Actually, the hp3parclient is listed in test-requirements.txt, and it is
    installed in venv.

    the check_uptodate.sh should run in venv to get correct result.

    update the error message to update the cindier.conf.sample correctly.

    -----------
    Test method
    -----------
    $ pwd
    /opt/stack/cinder

    $ source .venv/bin/activate; tools/conf/generate_sample.sh

    (.venv)$ deactivate

    $ ./run_tests.sh -p
    Running flake8 ...
    // no error emitted here

    Fixes Bug #1219197

    Change-Id: I9b3eaf3c1a5eb395eefed28bb907685cdef147aa