Split the overloaded variable 'win' into two for their specific purposes: recwin and sendwin.  This removes a big source of confusion and makes following the code much easier.
Split the overloaded variable 'win' into two for their specific purposes:
recwin and sendwin.  This removes a big source of confusion and makes
following the code much easier.

Reviewed by:	sam (mentor)
Obtained from:	DragonFlyBSD rev 1.6 (hsu)

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