o correct tun major number

o fix chgrp lists, found by new regress/etc/MAKEDEV

be a single digit. Powered by mantoya@.
millert@ ok.

devices now generated properly

mcd0 & speaker -> crept in, not on sparc64!
if [ "$os" = "SunOS" ]; then .. output script runnable on SunOS

add tcx to MAKEDEV

audio fixes from brad@

is being renamed to macppc. This is to allow sharing of common code
between different powerpc base platforms.
Files moved from etc/etc.powerpc to etc/etc.macppc

Test next time, ok?

bit flags ORed together.  Currently the only flags defined are
_PASSWORD_SECUREONLY and _PASSWORD_OMITV7 but this is enough to
cause pw_mkdb() to run pwd_mkdb with the options we want.
With this change we no longer generate the old V7 passwd file when
only the extra fields in master.passwd (or the encrypted password)
have changed.  There are other programs that could probably use
the _PASSWORD_OMITV7 flag; they will be converted at a future date.

ok fgs@