Update Nyaa Pantsu apiPath to the actual /feed/torznab url.

src/NzbDrone.Core/Indexers/Torznab/Torznab.cs

@@ -41,7 +41,7 @@ namespace NzbDrone.Core.Indexers.Torznab
             {
                 yield return GetDefinition("HD4Free.xyz", GetSettings("http://hd4free.xyz"));
                 yield return GetDefinition("AnimeTosho Torrents", GetSettings("https://animetosho.org", apiPath: @"/feed/nabapi", categories: new int[0], animeCategories: new[] { 5070 }));
-                yield return GetDefinition("Nyaa Pantsu", GetSettings("https://nyaa.pantsu.cat", categories: new int[0], animeCategories: new[] { 5070 }));
+                yield return GetDefinition("Nyaa Pantsu", GetSettings("https://nyaa.pantsu.cat", apiPath: @"/feed/torznab", categories: new int[0], animeCategories: new[] { 5070 }));
             }
         }