prelude.c.tmpl: require_relative
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48708 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
prelude.c.tmpl: require_relative
require_relative and comments followed by #.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48708 b2dd03c8-39d4-4d8f-98ff-823fe69b080e