Merged revisions 82992 via svnmerge from

Merged revisions 82992 via svnmerge from
https://origsvn.digium.com/svn/asterisk/branches/1.4

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r82992 | russell | 2007-09-18 19:19:49 -0500 (Tue, 18 Sep 2007) | 4 lines

Change the description of app_flash to note how it can be a useful tool instead
of just saying that it is generally a worthless feature.
(Thanks to Jim Van Meggelen for pointing it out and providing the proposed text)

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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@82993 65c4cc65-6c06-0410-ace0-fbb531ad65f3