Create: print message when preparing a container.

We currently print e.g. "Array /dev/md0 started", but nothing for
containers.
Fix that.

Signed-off-by: NeilBrown <neilb@suse.de>

Create.c

@@ -745,7 +745,8 @@ int Create(struct supertype *st, char *mddev,
 		/* No need to start.  But we should signal udev to
 		 * create links */
 		sysfs_uevent(&info, "change");
-		;
+		if (verbose >= 0)
+			fprintf(stderr, Name ": container %s prepared.\n", mddev);
 	} else if (runstop == 1 || subdevs >= raiddisks) {
 		if (st->ss->external) {
 			switch(level) {