Merge pull request #2915 from randrey/imdbid-length-fix

Fix imdbid regex

(cherry picked from commit 6f866a7fdc)
Signed-off-by: Joshua M. Boniface <joshua@boniface.me>

MediaBrowser.XbmcMetadata/Parsers/BaseNfoParser.cs

@@ -203,8 +203,8 @@ namespace MediaBrowser.XbmcMetadata.Parsers
 
         protected void ParseProviderLinks(T item, string xml)
         {
-            //Look for a match for the Regex pattern "tt" followed by 7 digits
-            var m = Regex.Match(xml, @"tt([0-9]{7})", RegexOptions.IgnoreCase);
+            // Look for a match for the Regex pattern "tt" followed by 7 or 8 digits
+            var m = Regex.Match(xml, "tt([0-9]{7,8})", RegexOptions.IgnoreCase);
             if (m.Success)
             {
                 item.SetProviderId(MetadataProviders.Imdb, m.Value);