[macruby-changes] [MacRuby/MacRuby] 144c5c: fix a leak in IO.copy_stream.

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Branch: refs/heads/master
Home:   https://github.com/MacRuby/MacRuby

Commit: 144c5c348bcfbb45b0cd4216e489755c3ed80bbc
    https://github.com/MacRuby/MacRuby/commit/144c5c348bcfbb45b0cd4216e489755c3ed80bbc
Author: Watson <watson1978 at gmail.com>
Date:   2011-05-05 (Thu, 05 May 2011)

Changed paths:
  M io.c

Log Message:
-----------
fix a leak in IO.copy_stream.