Fixes some pylint issues.

This doesn't fix all complaints by pylint, but significantly
reduces their number.  Ditto for pep8 complaints.

Also makes a couple of related cosmetic edits.

TESTED:
Ran "scons build-all check" with no errors.
Both "pylint" and "pep8" targets report fewer issues.

1 files changed, 1 insertions, 0 deletions

diff --git a/valgrind-audit.py b/valgrind-audit.py
index fcd8b8c5..9254d0d4 100755
--- a/valgrind-audit.py
+++ b/valgrind-audit.py
@@ -12,6 +12,7 @@
 from __future__ import absolute_import, print_function, division
 
 import sys
+
 import gps.fake
 
 debuglevel = 1