Merged revisions 75759 via svnmerge from

Merged revisions 75759 via svnmerge from
https://origsvn.digium.com/svn/asterisk/branches/1.4

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r75759 | russell | 2007-07-18 16:09:46 -0500 (Wed, 18 Jul 2007) | 13 lines

Merged revisions 75757 via svnmerge from
https://origsvn.digium.com/svn/asterisk/branches/1.2

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r75757 | russell | 2007-07-18 16:09:13 -0500 (Wed, 18 Jul 2007) | 5 lines

When traversing the queue of frames for possible retransmission after
receiving a VNAK, handle sequence number wraparound so that all frames that
should be retransmitted actually do get retransmitted.
(issue #10227, reported and patched by mihai)

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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@75761 65c4cc65-6c06-0410-ace0-fbb531ad65f3