Update funced

* Editor mode is no the default
* Use -i or --interactive or -e fish to edit function in interactive
  mode
* tmpname is now created with random number added and check that file
  do not already exist
* check $TMPDIR existence and put /tmp if it does not exist
* There is an undocumented feature to use functions, started with dash.
  Introduce necessary changes to funced, functions, def_function()
  in order to make it work properly.
* Delete editor guessing. Use $EDITOR variable or -e key

share/functions/funcsave.fish

@@ -30,9 +30,9 @@ function funcsave --description "Save the current definition of all specified fu
 	end
 
 	for i in $argv
-		if functions -q $i
-			functions $i > $configdir/fish/functions/$i.fish
-			functions -e $i
+		if functions -q -- $i
+			functions -- $i > $configdir/fish/functions/$i.fish
+			functions -e -- $i
 		else
 			printf (_ "%s: Unknown function '%s'\n") funcsave $i
 			set res 1