common.mk: upgrade benchmark_driver
since maybe r64870 implicitly depends on https://github.com/benchmark-driver/benchmark-driver/pull/47 too.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64883 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Added by k0kubun (Takashi Kokubun) about 7 years ago
common.mk: upgrade benchmark_driver
since maybe r64870 implicitly depends on
https://github.com/benchmark-driver/benchmark-driver/pull/47 too.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64883 b2dd03c8-39d4-4d8f-98ff-823fe69b080e