don't forget to close a descriptor on a malloc failure.

On passing, small rearrangement of the code to reduce indentation.

There is a bit more cleanup planned for this file, so a merge to 1.4
will be done when it is all done.



git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@45152 65c4cc65-6c06-0410-ace0-fbb531ad65f3