Better exception info for diskprovider

NzbDrone.Common/DiskProvider.cs

@@ -105,9 +105,18 @@ namespace NzbDrone.Common
         }
 
         public virtual void MoveDirectory(string source, string destination)
+        {
+            try
             {
                 Directory.Move(source, destination);
             }
+            catch (Exception e)
+            {
+                e.Data.Add("Source", source);
+                e.Data.Add("Destination", destination);
+                throw;
+            }
+        }
 
         public virtual void InheritFolderPermissions(string filename)
         {