Limit pep8 checks to our source
Limit pep8 checks to our source

Exclude the .update-env directory, including anything
installed there from third-party packages, when running
pep8.

Change-Id: I2c2ee9146cbf2f5449f7f8d042b578ec3d8d2b83
Signed-off-by: Doug Hellmann <8c845c26a3868dadec615703cd974244eb2ac6d1@dreamhost.com>

JioCloud/oslo-incubator,JioCloud/oslo-incubator,JioCloud/oslo-incubator