Merged revisions 238629 via svnmerge from

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

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  r238629 | mnicholson | 2010-01-08 13:20:44 -0600 (Fri, 08 Jan 2010) | 5 lines
  
  Properly calculate the remaining space in the output string when reducing format strings.
  
  (closes issue #16560)
  Reported by: goldwein
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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@238630 65c4cc65-6c06-0410-ace0-fbb531ad65f3