message: Remove deprecated std::binary_function.
  Stop using deprecated feature that is being removed from C++17.
  REF_BUG=65670724
  REF_CL=176398163
  REF_TIME=2017-11-20T12:19:07-08:00
  REF_TIME_RAW=1511209147 -0800
diff: MAJOR=2
  MINOR=23
  -BUILD=2765
  +BUILD=2766
  REVISION=102
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