range.c: infected by the receiver
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52868 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
range.c: infected by the receiver
str2 infects by appending. [ruby-core:71811] [Bug #11767]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52868 b2dd03c8-39d4-4d8f-98ff-823fe69b080e