Blocked revisions 251410 via svnmerge

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r251410 | seanbright | 2010-03-09 14:29:39 -0500 (Tue, 09 Mar 2010) | 8 lines

Use ast_strlen_zero to avoid a crash when a Dial() string isn't passed to ParkAndAnnounce

(closes issue #16731)
Reported by: sebele67
Patches:
      issue16731_20100129.diff uploaded by seanbright (license 71)
Tested by: sebele67

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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@251411 65c4cc65-6c06-0410-ace0-fbb531ad65f3