[rpc] fix typo in branch prediction

This is a follow-up to 3f0c434143ad6daa8ed4f39d8ceacbe58604dd29

Change-Id: I5af612277dc5b03bdee597212885d47c823a6025
Reviewed-on: http://gerrit.cloudera.org:8080/21044
Reviewed-by: Abhishek Chennaka <achennaka@cloudera.com>
Tested-by: Alexey Serbin <alexey@apache.org>
2 files changed