hash.c: frozen PATH env
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@46538 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
hash.c: frozen PATH env
string, to be frozen.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@46538 b2dd03c8-39d4-4d8f-98ff-823fe69b080e