irb/init.rb: make sure ARGV refers to toplevel one
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61151 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
irb/init.rb: make sure ARGV refers to toplevel one
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61151 b2dd03c8-39d4-4d8f-98ff-823fe69b080e