change if ((a == b)) to if (a == b); silences noisy on-by-default
"equality comparison with extraneous parentheses
[-Wparentheses-equality]" clang warning.
OK deraadt, kettenis

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

Check the correct bits in the control byte.
Found by Alexey Dobriyan (adobriyan at gmail dot com) -moj

Make the code lint friendly. -moj

4000 lines worth of cleanup, KNF, Knall&Rauch elemination and such
tested by hshoexer, "don't wait for me" miod@

-Wall cleanup: trim unused vars, right format strings, constify rcsids,
braces where needed, add missing prototypes.

tested and ok maja@

remove clause 3 and 4. -moj

Replace $Id with $OpenBSD, 3:rd try. -moj

branches: 1.1.1;
Initial revision