Rename precondition to 'YoungerThanTwoWeeks'

src/Discord.Net.Core/Utils/Preconditions.cs

@@ -183,7 +183,7 @@ namespace Discord
         }
 
         // Bulk Delete
-        public static void NoMessageOlderThanTwoWeeks(ulong[] collection, string name)
+        public static void YoungerThanTwoWeeks(ulong[] collection, string name)
         {
             var minimum = DateTimeUtils.ToSnowflake(DateTimeOffset.Now.Subtract(TimeSpan.FromMilliseconds(1209540000)));
             for (var i = 0; i < collection.Length; i++)

src/Discord.Net.Rest/DiscordRestApiClient.cs

@@ -484,7 +484,7 @@ namespace Discord.API
             Preconditions.NotNull(args, nameof(args));
             Preconditions.NotNull(args.MessageIds, nameof(args.MessageIds));
             Preconditions.AtMost(args.MessageIds.Length, 100, nameof(args.MessageIds.Length));
-            Preconditions.NoMessageOlderThanTwoWeeks(args.MessageIds, nameof(args.MessageIds));
+            Preconditions.YoungerThanTwoWeeks(args.MessageIds, nameof(args.MessageIds));
             options = RequestOptions.CreateOrClone(options);
 
             switch (args.MessageIds.Length)