whitequark/parser — pull request #169 by hirocaster (2014-10-28 07:23:46+00:00)
Title: Fix 2.1.3 bug syntax

Release 2.1.4 https://www.ruby-lang.org/en/news/2014/10/27/ruby-2-1-4-released/

Fixed 2.1.3 bug syntax https://bugs.ruby-lang.org/issues/10279

so, Not warn to version 2.1.4 ruby.