parser/tests: allow for DST change

e.g. 21d / 2w are subject to DST; update the tolerance.

lib/parser/test-utils.cc

@@ -86,8 +86,8 @@ test_date_ymwdhMs (void)
 		int		tolerance;
 	} tests[] = {
 		{ "3h", 3 * 60 * 60, 1 },
-		{ "21d", 21 * 24 * 60 * 60, 1 },
-		{ "2w", 2 * 7 * 24 * 60 * 60, 1 },
+		{ "21d", 21 * 24 * 60 * 60, 3600 + 1 },
+		{ "2w", 2 * 7 * 24 * 60 * 60, 3600 + 1 },
 
 		{ "2y", 2 * 365 * 24 * 60 * 60, 24 * 3600 + 1 },
 		{ "3m", 3 * 30 * 24 * 60 * 60, 3 * 24 * 3600 + 1 }
@@ -154,8 +154,6 @@ test_format ()
 		       "hello world, 123");
 }
 
-
-
 int
 main (int argc, char *argv[])
 {