bugfix release

CHANGELOG.md

-# v2.19.2
-
-* added `db_call`
+# v2.20.2
 
+* fixed transaction to log only for real exceptions

satella/__init__.py

-__version__ = '2.20.1'
+__version__ = '2.20.2'

satella/db.py

@@ -37,7 +37,7 @@ class transaction:
         else:
             self.connection.rollback()
 
-        if self.log_exception:
+        if exc_val is None and self.log_exception:
             logger.error('Exception occurred of type %s', exc_type, exc_info=exc_val)
 
         self.cursor.close()