Document tools/flakes is from commons

When copying tools around it may not be clear that they came from
openstack-common.  So add a note at top of code. Had to say from
openstack-common since cannot say from oslo-incubator since word oslo is
replaced when copied.

Change-Id: I7514c88d448f13cb7b11ed1ea81a035c6a201bae

1 files changed, 2 insertions, 0 deletions

diff --git a/tools/flakes.py b/tools/flakes.py
index 4c9d820..5e089ba 100644
--- a/tools/flakes.py
+++ b/tools/flakes.py
@@ -1,6 +1,8 @@
 """
  wrapper for pyflakes to ignore gettext based warning:
      "undefined name '_'"
+
+ Synced in from openstack-common
 """
 import sys