fix completely brain-dead formula for computing padding that worked by
accident (except for 32 bits display)
make sure we get our CFLAGS and not the shit it wants (especially since
we use -fno-strict-aliasing anyways).
and bump PKGNAME, of course...
locking files in /var/spool/lock rather than /var/spool/uucp. Users need
to be in group dialer for that, and to open the serial devices now; this
matches OpenBSD tip(1) behaviour; itojun said it looks ok