auth: use log formatting for message

eliasp · waynew · web-flow · commit b834782210ae · 2019-07-25T13:45:38.000Z
Co-Authored-By: Wayne Werner &lt;waynejwerner@gmail.com&gt;
diff --git a/salt/auth/__init__.py b/salt/auth/__init__.py
@@ -330,7 +330,7 @@ def authenticate_key(self, load, key):
                 return auth_user.sudo_name()
             elif load['user'] == self.opts.get('user', 'root') or load['user'] == 'root':
                 if auth_key != key[self.opts.get('user', 'root')]:
-                    log.warning('Master runs as "{}", but user in payload is "{}"'.format(self.opts.get('user', 'root'), load['user']))
+                    log.warning('Master runs as %r, but user in payload is %r', self.opts.get('user', 'root'), load['user'])
                     log.warning(error_msg)
                     return False
             elif auth_user.is_running_user():
