Only rename output file if it's not "-".
authorP. J. McDermott <pjm@nac.net>
Mon, 23 Sep 2013 14:04:16 +0000 (10:04 -0400)
committerP. J. McDermott <pjm@nac.net>
Mon, 23 Sep 2013 14:04:16 +0000 (10:04 -0400)

No differences found