uuidparse: fix getopt crash

$ ./uuidparse --unknownopt
Segmentation fault (core dumped)

Hehe, this is the first real bug found by 'make checkusage'.

Signed-off-by: Ruediger Meier <ruediger.meier@ga-group.nl>

misc-utils/uuidparse.c

@@ -299,6 +299,7 @@ int main(int argc, char **argv)
 		{"raw",        no_argument,       NULL, 'r'},
 		{"version",    no_argument,       NULL, 'V'},
 		{"help",       no_argument,       NULL, 'h'},
+		{NULL, 0, NULL, 0}
 	};
 	static const ul_excl_t excl[] = {
 		{'J', 'r'},