Display error message if patch fails.

Review Request #336 — Created April 1, 2008 and submitted

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Reviewers

I've noticed that the output from patch goes to stderr.  Every once in a while someone uploads some bizarre patch that fails to apply cleanly.  The error message is less than useful.  This fixes the problem.
Tested against a patch that was failing, and the error message was displayed as expected.  Also verified I didn't break good patches.
david
  1. Thanks so much for this.  Committed as r1264.
  2.