Fix pylint warnings in cli/acl.py.

This CL has the side effect of ensuring that the autotest ebuilds are uprevved,
which is needed for fixing some breakage associated with corrupted prebuilts.

BUG=none
TEST=pylint passes.

Change-Id: If8119ae9080e0ed4462356bd73587dc161bcc885
Reviewed-on: https://gerrit.chromium.org/gerrit/43856
Commit-Queue: David James <davidjames@chromium.org>
Tested-by: David James <davidjames@chromium.org>
Reviewed-by: Brian Harring <ferringb@chromium.org>
1 file changed