usbdevs(8) getopt tweak

[David Gwynne]

usbdevs has "?" in the optstring is passes to getopt, but doesn't handle
it specially. this is unnecessarily different to everything else in the
tree, so i want to remove it. ok?

Index: usbdevs.c
===================================================================
RCS file: /cvs/src/usr.sbin/usbdevs/usbdevs.c,v
retrieving revision 1.34
diff -u -p -r1.34 usbdevs.c
--- usbdevs.c   12 Jul 2021 15:09:22 -0000      1.34
+++ usbdevs.c   28 Oct 2022 01:59:52 -0000
@@ -239,7 +239,7 @@ main(int argc, char **argv)
        uint8_t addr = 0;
        const char *errstr;
 
-       while ((ch = getopt(argc, argv, "a:d:v?")) != -1) {
+       while ((ch = getopt(argc, argv, "a:d:v")) != -1) {
                switch (ch) {
                case 'a':
                        addr = strtonum(optarg, 1, USB_MAX_DEVICES-1, &errstr);