tests: tst-futimens1: add missing mode args to open()

Since we use O_CREAT with open(), need to make sure to pass in mode too.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>

test/time/tst-futimens1.c

@@ -46,7 +46,7 @@ int do_test(int argc, char **argv) {
 		name = tests[i].name;
 		if (*name != '.')
 			unlink(name);
-		fd = open(name, tests[i].flags);
+		fd = open(name, tests[i].flags, 0660);
 		if (fd < 0)
 			abort();
 		errno = 0;