make "git annex help options" work outside a git repo

Option parsing for commands that run outside git repos is still screwy,
as there is no Annex monad and so the flags cannot be passed in. But,
any remaining parameters can be, which is enough for this fix.

Command/Assistant.hs

@@ -55,8 +55,8 @@ start foreground stopdaemon autostart startdelay
 
 {- Run outside a git repository. Check to see if any parameter is
  - --autostart and enter autostart mode. -}
-checkAutoStart :: IO ()
-checkAutoStart = ifM (elem "--autostart" <$> getArgs)
+checkAutoStart :: CmdParams -> IO ()
+checkAutoStart _ = ifM (elem "--autostart" <$> getArgs)
 	( autoStart Nothing
 	, error "Not in a git repository."
 	)