Pull up following revision(s) (requested by martin in ticket #58):
	sys/dev/usb/umcs.c: revision 1.8
Fix a few logical vs. physical port number confusions to make this
driver work with two port variants.
Pull up following revision(s) (requested by christos in ticket #73):
	usr.bin/cksum/cksum.1: revision 1.46
	usr.bin/cksum/cksum.1: revision 1.47
	usr.bin/cksum/cksum.c: revision 1.47
PR/49134: Kamil Rytarowski: Add -q flag.
New sentence, new line.
Tickets 58, 73.