Reformat common to standardized format

Change-Id: I9ba54f3510e17de285e1e774d18ee5c7205818ad
Signed-off-by: garciadeblas <gerardo.garciadeblas@telefonica.com>
diff --git a/osm_common/common_utils.py b/osm_common/common_utils.py
index 4cb5857..ff7bc6d 100644
--- a/osm_common/common_utils.py
+++ b/osm_common/common_utils.py
@@ -21,6 +21,7 @@
 
 class FakeLock:
     """Implements a fake lock that can be called with the "with" statement or acquire, release methods"""
+
     def __enter__(self):
         pass