RF: primarily flake8 lints + minor RF to reduce duplication in PATHEXT

I did keep some "bare" except with catch all Exception: , while tried to disable
flake8 complaints where clearly all exceptions are to be catched

1 files changed, 1 insertions, 1 deletions

diff --git a/git/exc.py b/git/exc.py
index a737110c..5c5aa2b4 100644
--- a/git/exc.py
+++ b/git/exc.py
@@ -48,7 +48,7 @@ class CommandError(UnicodeMixin, GitError):
             else:
                 try:
                     status = u'exit code(%s)' % int(status)
-                except:
+                except ValueError:
                     s = safe_decode(str(status))
                     status = u"'%s'" % s if isinstance(status, string_types) else s