[freeipa PR#1139][opened] [Backport][ipa-4-6] travis: make tests fail if pep8 does not pass

[stlaz]

   URL: https://github.com/freeipa/freeipa/pull/1139
Author: stlaz
 Title: #1139: [Backport][ipa-4-6]  travis: make tests fail if pep8 does not pass 
Action: opened

PR body:
"""
This PR was opened automatically because PR #1122 was pushed to master and backport to
ipa-4-6 is required.
"""

To pull the PR as Git branch:
git remote add ghfreeipa https://github.com/freeipa/freeipa
git fetch ghfreeipa pull/1139/head:pr1139
git checkout pr1139

[freeipa PR#1139][closed] [Backport][ipa-4-6] travis: make tests fail if pep8 does not pass

[stlaz]

   URL: https://github.com/freeipa/freeipa/pull/1139
Author: stlaz
 Title: #1139: [Backport][ipa-4-6]  travis: make tests fail if pep8 does not pass 
Action: closed

To pull the PR as Git branch:
git remote add ghfreeipa https://github.com/freeipa/freeipa
git fetch ghfreeipa pull/1139/head:pr1139
git checkout pr1139