gc.c: fix GC_PROFILE_DETAIL_MEMORY
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56373 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
gc.c: fix GC_PROFILE_DETAIL_MEMORY
rusage.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56373 b2dd03c8-39d4-4d8f-98ff-823fe69b080e