[issue1492] games/larn: replace sgtty with termios

[Ulrich Spoerlein (via DragonFly issue tracker)]

New submission from Ulrich Spoerlein <uqs at spoerlein.net>:

This gets rid of sgtty calls in larn(6), courtesy of FreeBSD ports

I also cleaned up some unnecessary BSD and SYSV defines as well as NOVARARGS 
and unrolled the obfuscated doraw/unraw macros.

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files: larn.diff
messages: 7326
nosy: uqs
priority: cleanup
status: unread
title: games/larn: replace sgtty with termios

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