Merged revisions 132872 via svnmerge from

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

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r132872 | kpfleming | 2008-07-23 06:52:18 -0500 (Wed, 23 Jul 2008) | 2 lines

minor optimization for stringfields: when a field is being set to a larger value than it currently contains and it happens to be the most recent field allocated from the currentl pool, it is possible to 'grow' it without having to waste the space it is currently using (or potentially even allocate a new pool)

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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@132964 65c4cc65-6c06-0410-ace0-fbb531ad65f3