Fixed: Improved empty root folder failsafe logging (#7341)

Co-authored-by: bakerboy448 <55419169+bakerboy448@users.noreply.github.com>

src/NzbDrone.Core/MediaFiles/DiskScanService.cs

@@ -91,7 +91,7 @@ namespace NzbDrone.Core.MediaFiles
 
                 if (_diskProvider.FolderEmpty(rootFolder))
                 {
-                    _logger.Warn("Movie's root folder ({0}) is empty.", rootFolder);
+                    _logger.Warn("Movie's root folder ({0}) is empty. Rescan will not update movies as a failsafe.", rootFolder);
                     _eventAggregator.PublishEvent(new MovieScanSkippedEvent(movie, MovieScanSkippedReason.RootFolderIsEmpty));
                     return;
                 }

src/NzbDrone.Core/MediaFiles/MediaFileDeletionService.cs

@@ -61,8 +61,8 @@ namespace NzbDrone.Core.MediaFiles
 
             if (_diskProvider.GetDirectories(rootFolder).Empty())
             {
-                _logger.Warn("Movie's root folder ({0}) is empty.", rootFolder);
+                _logger.Warn("Movie's root folder ({0}) is empty. Rescan will not update movies as a failsafe.", rootFolder);
-                throw new NzbDroneClientException(HttpStatusCode.Conflict, "Movie's root folder ({0}) is empty.", rootFolder);
+                throw new NzbDroneClientException(HttpStatusCode.Conflict, "Movie's root folder ({0}) is empty. Rescan will not update movies as a failsafe.", rootFolder);
             }
 
             if (_diskProvider.FolderExists(movie.Path) && _diskProvider.FileExists(fullPath))