Replace blanket exception statement with a specific error message.
Prevents obscure bugs, such as KeyboardInterrupt being suppressed at
exactly the wrong time
@timClicks thanks for this. FYI I am redeveloping the plugin as a processing algorithm. Its at an early stage at the moment but I'm expecting to have a first version available in a few weeks.
Replace blanket exception statement with a specific error message. Prevents obscure bugs, such as KeyboardInterrupt being suppressed at exactly the wrong time