Merged revisions 316707 via svnmerge from

Merged revisions 316707 via svnmerge from
https://origsvn.digium.com/svn/asterisk/branches/1.4

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  r316707 | seanbright | 2011-05-04 12:08:50 -0400 (Wed, 04 May 2011) | 8 lines

  If sox fails when processing a voicemail, don't delete the original file.

  (closes issue #18111)
  Reported by: sysreq
  Patches:
        issue18111_trunk.patch uploaded by seanbright (license 71)
  Tested by: seanbright
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git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.6.2@316708 65c4cc65-6c06-0410-ace0-fbb531ad65f3