Small fixes

Emby.Naming/Video/ExtraRuleType.cs

@@ -20,7 +20,7 @@ namespace Emby.Naming.Video
         Regex = 2,
 
         /// <summary>
-        /// Match <see cref="ExtraRule.Token"/> against the directory name of the file.
+        /// Match <see cref="ExtraRule.Token"/> against the name of the directory containing the file.
         /// </summary>
         DirectoryName = 3,
     }

MediaBrowser.Api/UserLibrary/UserLibraryService.cs

@@ -381,7 +381,7 @@ namespace MediaBrowser.Api.UserLibrary
 
             var dtoOptions = GetDtoOptions(_authContext, request);
 
-            var dtosExtras = item.GetExtras(new ExtraType[] { ExtraType.Trailer })
+            var dtosExtras = item.GetExtras(new[] { ExtraType.Trailer })
                 .Select(i => _dtoService.GetBaseItemDto(i, dtoOptions, user, item))
                 .ToArray();