Merged revisions 283350 via svnmerge from

https://origsvn.digium.com/svn/asterisk/branches/1.8

........
  r283350 | russell | 2010-08-24 07:49:41 -0500 (Tue, 24 Aug 2010) | 2 lines
  
  Don't attempt to release a NULL ODBC handle.
........


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@283351 65c4cc65-6c06-0410-ace0-fbb531ad65f3