[PATCH] fix cu3088 group write

The current cu3088 ccwgroup write code overwrite the last char of the
given arguments.  This fixes the problem.  It is been tested and applies
on latest bk.

drivers/s390/net/cu3088.c

@@ -64,7 +64,7 @@ static ssize_t
 group_write(struct device_driver *drv, const char *buf, size_t count)
 {
 	const char *start, *end;
-	char bus_ids[2][BUS_ID_SIZE], *argv[2];
+	char bus_ids[2][BUS_ID_SIZE+1], *argv[2];
 	int i;
 	int ret;
 	struct ccwgroup_driver *cdrv;
@@ -79,7 +79,7 @@ group_write(struct device_driver *drv, const char *buf, size_t count)
 
 		if (!(end = strchr(start, delim[i])))
 			return count;
-		len = min_t(ptrdiff_t, BUS_ID_SIZE, end - start);
+		len = min_t(ptrdiff_t, BUS_ID_SIZE, end - start)+1;
 		strlcpy (bus_ids[i], start, len);
 		argv[i] = bus_ids[i];
 		start = end + 1;