ioat/kperf: -h option has no argument

Fix the getopt string for the -h switch so that it does not expect an
argument.

Change-Id: I8ea86018d6ee2c61ad698eead9718b2babfe6791
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>

examples/ioat/kperf/ioat_kperf.c

@@ -222,7 +222,7 @@ int main(int argc, char *argv[])
 	}
 	ring_size = 1UL << order;
 
-	while ((op = getopt(argc, argv, "h:n:q:s:t:")) != -1) {
+	while ((op = getopt(argc, argv, "hn:q:s:t:")) != -1) {
 		switch (op) {
 		case 'n':
 			threads = atoi(optarg);