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.

Command/Unused.hs

@@ -68,7 +68,7 @@ checkUnused = do
 		dropmsg = ["(To remove unwanted data: git-annex dropunused NUMBER)"]
 			
 		table l = ["  NUMBER  KEY"] ++ map cols l
-		cols (n,k) = "  " ++ pad 6 (show n) ++ "  " ++ (filePathToString . show) k
+		cols (n,k) = "  " ++ pad 6 (show n) ++ "  " ++ show k
 		pad n s = s ++ replicate (n - length s) ' '
 
 number :: Int -> [a] -> [(Int, a)]