Roll external/effcee/ 2c97e5689..67a2efff2 (1 commit)

google/effcee@2c97e56...67a2eff

Created with:
  roll-dep external/effcee

DEPS

@@ -5,7 +5,7 @@ vars = {
 
   'abseil_revision': '5913446e0c0f8c1976627654956c3553e1519d2c',
 
-  'effcee_revision': '2c97e5689ed8d7ab6ae5820f884f03a601ae124b',
+  'effcee_revision': '67a2efff2e4251423ee081c4184881c73c42beb4',
 
   'googletest_revision': 'f3c355f9dd382bc2c323be2713e351a578b68c61',