security.rdoc: correction
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@49516 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
security.rdoc: correction
to immortal symbols, SYM2ID may create new IDs.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@49516 b2dd03c8-39d4-4d8f-98ff-823fe69b080e