grandenet script: Fix huge typo.

net-misc/re6stnet/files/grandenet

@@ -122,7 +122,7 @@ if [ "$usefound" == "n" -o "$usefound" == "N" ]; then
 fi
 
 # copy the config if needed got by previous steps
-if [ ${path}=${configdir} ]; then
+if [ ${path} == ${configdir} ]; then
     echo "Using configuration in place."
 elif [ ! -d "$path" ] ; then
     echo "Invalid path '${path}'. Exiting."