erb.rb: frozen-string-literal safe
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53682 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
erb.rb: frozen-string-literal safe
a buffer to make ERB work with --enable-frozen-string-literal.
[ruby-core:73561] [Bug #12031]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53682 b2dd03c8-39d4-4d8f-98ff-823fe69b080e