Merged revisions 314780 via svnmerge from

Merged revisions 314780 via svnmerge from
https://origsvn.digium.com/svn/asterisk/branches/1.8

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  r314780 | russell | 2011-04-22 09:02:23 -0500 (Fri, 22 Apr 2011) | 18 lines

  Merged revisions 314778 via svnmerge from
  https://origsvn.digium.com/svn/asterisk/branches/1.6.2

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    r314778 | russell | 2011-04-22 08:58:03 -0500 (Fri, 22 Apr 2011) | 11 lines

    Initialize buffers in getvar and getvarfull.

    Initialize the buffers used to hold the result from GET VARIABLE or
    GET VARIABLE FULL.  The bug report shows func_read returning garbage in
    the result.  It assumed that the buffer passed in was initialized, like many
    other functions do.  In the more common code path (through the dialplan), it
    is initialized, so just initialize it here too.

    (closes issue #19050)
    Reported by: johnz
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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@314781 65c4cc65-6c06-0410-ace0-fbb531ad65f3