mongoose: S85mongoose: fix default options

mongoose fails to start because the options used are not supported by
mongoose. Fix it by using the correct option names instead.

[Peter: reworded commit text and use the correct long options instead]
Signed-off-by: Davide Viti <d.viti@infosolution.it>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/mongoose/S85mongoose

@@ -10,7 +10,7 @@ NAME=mongoose
 DESC="Mongoose HTTP server"
 
 DAEMON=`which mongoose`
-OPTIONS="-max_threads 3 -root /var/www  -ports 80"
+OPTIONS="-num_threads 3 -document_root /var/www -listening_ports 80"
 
 [ -e /etc/default/mongoose ] && . /etc/default/mongoose