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.

CmdLine.hs

@@ -32,16 +32,13 @@ import Annex.Environment
 import Command
 import Types.Messages
 
-type Params = [String]
-type Flags = [Annex ()]
-
 {- Runs the passed command line. -}
-dispatch :: Bool -> Params -> [Command] -> [Option] -> [(String, String)] -> String -> IO Git.Repo -> IO ()
+dispatch :: Bool -> CmdParams -> [Command] -> [Option] -> [(String, String)] -> String -> IO Git.Repo -> IO ()
 dispatch fuzzyok allargs allcmds commonoptions fields header getgitrepo = do
 	setupConsole
 	r <- E.try getgitrepo :: IO (Either E.SomeException Git.Repo)
 	case r of
-		Left e -> fromMaybe (throw e) (cmdnorepo cmd)
+		Left e -> maybe (throw e) (\a -> a params) (cmdnorepo cmd)
 		Right g -> do
 			state <- Annex.new g
 			(actions, state') <- Annex.run state $ do
@@ -66,7 +63,7 @@ dispatch fuzzyok allargs allcmds commonoptions fields header getgitrepo = do
 {- Parses command line params far enough to find the Command to run, and
  - returns the remaining params.
  - Does fuzzy matching if necessary, which may result in multiple Commands. -}
-findCmd :: Bool -> Params -> [Command] -> (String -> String) -> (Bool, [Command], String, Params)
+findCmd :: Bool -> CmdParams -> [Command] -> (String -> String) -> (Bool, [Command], String, CmdParams)
 findCmd fuzzyok argv cmds err
 	| isNothing name = error $ err "missing command"
 	| not (null exactcmds) = (False, exactcmds, fromJust name, args)
@@ -85,7 +82,7 @@ findCmd fuzzyok argv cmds err
 
 {- Parses command line options, and returns actions to run to configure flags
  - and the remaining parameters for the command. -}
-getOptCmd :: Params -> Command -> [Option] -> (Flags, Params)
+getOptCmd :: CmdParams -> Command -> [Option] -> ([Annex ()], CmdParams)
 getOptCmd argv cmd commonoptions = check $
 	getOpt Permute (commonoptions ++ cmdoptions cmd) argv
   where