pyflakes: Fix remaining "E501 line too long" warnings

We increased the max line length to 100 columns which got rid of
the majority of these warnings, but there were still a few lines
that exceeded 100 columns.

Change-Id: Ib3372868ca2297f83073a14f91c8ae3df9d0d0e6
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/254699
Tested-by: David Pursehouse <dpursehouse@collab.net>
Reviewed-by: Mike Frysinger <vapier@google.com>