Added better log message when indexer reached daily grab limit.

src/NzbDrone.Core/Download/TorrentClientBase.cs

@@ -129,8 +129,15 @@ namespace NzbDrone.Core.Download
                 _logger.Debug("Downloading torrent for episode '{0}' finished ({1} bytes from {2})", remoteEpisode.Release.Title, torrentFile.Length, torrentUrl);
             }
             catch (HttpException ex)
+            {
+                if ((int)ex.Response.StatusCode == 429)
+                {
+                    _logger.Error("API Grab Limit reached for {0}", torrentUrl);
+                }
+                else
                 {
                     _logger.Error(ex, "Downloading torrent file for episode '{0}' failed ({1})", remoteEpisode.Release.Title, torrentUrl);
+                }
 
                 throw new ReleaseDownloadException(remoteEpisode.Release, "Downloading torrent failed", ex);
             }

src/NzbDrone.Core/Download/UsenetClientBase.cs

@@ -52,8 +52,15 @@ namespace NzbDrone.Core.Download
                 _logger.Debug("Downloaded nzb for episode '{0}' finished ({1} bytes from {2})", remoteEpisode.Release.Title, nzbData.Length, url);
             }
             catch (HttpException ex)
+            {
+                if ((int)ex.Response.StatusCode == 429)
+                {
+                    _logger.Error("API Grab Limit reached for {0}", url);
+                }
+                else
                 {
                     _logger.Error(ex, "Downloading nzb for episode '{0}' failed ({1})", remoteEpisode.Release.Title, url);
+                }
 
                 throw new ReleaseDownloadException(remoteEpisode.Release, "Downloading nzb failed", ex);
             }