Issue #1921 has been updated by Andy Keep.

File parse.y.heredoc_patch added

Hmmm... That is odd, I had attached the patch when I initially created this ticket.  (Or at least I thought I had.)  Here is a patch (updated for SVN revision 25401)
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http://redmine.ruby-lang.org/issues/show/1921

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http://redmine.ruby-lang.org