tests: fix test expectation mismatch

Author: tiennou

tests/iterator/workdir.c

@@ -661,10 +661,10 @@ void test_iterator_workdir__filesystem_gunk(void)
 
 	cl_git_pass(git_iterator_for_filesystem(&i, "testrepo/.git/refs", NULL));
 
-	/* should only have 13 items, since we're not asking for trees to be
+	/* should only have 16 items, since we're not asking for trees to be
 	 * returned.  the goal of this test is simply to not crash.
 	 */
-	expect_iterator_items(i, 15, NULL, 15, NULL);
+	expect_iterator_items(i, 16, NULL, 15, NULL);
 	git_iterator_free(i);
 	git_buf_dispose(&parent);
 }