Ruby

match whole word

• tool/transform_mjit_header.rb: add word boundary anchors and
  match whole word to get rid of false static declarations,
  e.g., rb_str_new_static.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62199 b2dd03c8-39d4-4d8f-98ff-823fe69b080e