add missing 'void'

ok mestre@

Pledge for backgammon and teachgammon.

Both are straightforward "stdio rpath tty" programs; teachgammon
exec's backgammon at the end, so give it "exec" in addition.

While there, ANSIfy

rcsid[] and sccsid[] and copyright[] are essentially unmaintained (and
unmaintainable). these days, people use source. these id's do not provide
any benefit, and do hurt the small install media
(th

rcsid[] and sccsid[] and copyright[] are essentially unmaintained (and
unmaintainable). these days, people use source. these id's do not provide
any benefit, and do hurt the small install media
(the 33,000 line diff is essentially mechanical)
ok with the idea millert, ok dms

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assorted fixes mostly from coverity via netbsd via jasper adriaanse via tech

Remove the advertising clause in the UCB license which Berkeley
rescinded 22 July 1999. Proofed by myself and Theo.

NetBSD changes and further improvements and corrections

initial import of NetBSD tree