Merged revisions 75405 via svnmerge from

https://origsvn.digium.com/svn/asterisk/branches/1.4

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r75405 | mmichelson | 2007-07-17 15:03:48 -0500 (Tue, 17 Jul 2007) | 6 lines

Fixing an error I made earlier. ast_fileexists can return -1 on failure, so I need to be sure that we only enter the if
statement if it is successful.

Related to my fix to issue #10186


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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@75406 65c4cc65-6c06-0410-ace0-fbb531ad65f3