Rethink filename encoding handling for display. Since filename encoding may or may not match locale settings, any attempt to decode filenames will fail for some files. So instead, do all output in binary mode.

Backend/SHA.hs

@@ -83,5 +83,5 @@ checkKeyChecksum size key = do
 				then return True
 				else do
 					dest <- moveBad key
-					warning $ "Bad file content; moved to " ++ filePathToString dest
+					warning $ "Bad file content; moved to " ++ dest
 					return False