Roll external/effcee/ 2c97e5689..12241cbc3 (8 commits)

google/effcee@2c97e56...12241cb

Created with:
  roll-dep external/effcee

DEPS

@@ -5,7 +5,7 @@ vars = {
 
   'abseil_revision': '62f74fd1a4e99710ac94a2181a43adc60ee3706d',
 
-  'effcee_revision': '2c97e5689ed8d7ab6ae5820f884f03a601ae124b',
+  'effcee_revision': '12241cbc30f20730b656db7fd5a3fa36cd420843',
 
   'googletest_revision': 'e235eb34c6c4fed790ccdad4b16394301360dcd4',