Fix value explanation in get_creds_by_roles
On I78a4884e980ef7d0103639cb3792a54c69fb7761 review, there was some
mis-updated explanation but we skipped to update it because the patch
took long time for review and that was not critical.
This patch does cleanup for it.
Change-Id: Icb0d4eea1a9c128abfea7f5c16e8478103ec1c49
diff --git a/tempest/common/preprov_creds.py b/tempest/common/preprov_creds.py
index e154842..eac7f4e 100644
--- a/tempest/common/preprov_creds.py
+++ b/tempest/common/preprov_creds.py
@@ -249,7 +249,7 @@
'utf-8'), None)
# The force kwarg is used to allocate an additional set of creds with
# the same role list. The index used for the previously allocation
- # in the preprov_creds dict will be moved.
+ # in the _creds dict will be moved.
if exist_creds and not force_new:
return exist_creds
elif exist_creds and force_new: