* insns.def (opt_mod): Use % operator if both operands are positive for
  a significant performance improvement. Thanks to @samsaffron.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40410 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
fix minor code comment typos

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40411 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* 2013-04-23

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40412 b2dd03c8-39d4-4d8f-98ff-823fe69b080e