fix some mixed space+tab indentation

This fixes all instances of " \t" in the code base. Most common case
seems to be after a "where" line; probably vim copied the two space layout
of that line.

Done as a background task while listening to episode 2 of the Type Theory
podcast.

Command/Info.hs

@@ -100,7 +100,7 @@ localInfo dir = showCustom (unwords ["info", dir]) $ do
 	evalStateT (mapM_ showStat stats) =<< getLocalStatInfo dir
 	return True
   where
-  	tostats = map (\s -> s dir)
+	tostats = map (\s -> s dir)
 
 selStats :: [Stat] -> [Stat] -> Annex [Stat]
 selStats fast_stats slow_stats = do