Hi.

>Can anybody confirm?

Yes, this is it. (according to [ruby-dev:26367])

>I commited this to HEAD. How can I backport this into the Ruby 1.8.x line?

checkout with revision tag 'ruby_1_8' (to different directory with HEAD)
And you can modify & commit as usual.

My WinCVS executes this command. (-r revision tag, -d destinition directory -P ???)

  cvs checkout -P -r ruby_1_8 -d ruby_1_8 ruby