(svn r26725) -Fix: String pointed the user to a non-existent group of settings.

src/lang/english.txt

@@ -4119,7 +4119,7 @@ STR_ERROR_TOO_CLOSE_TO_EDGE_OF_MAP_SUB                          :{WHITE}... too
 STR_ERROR_TOO_CLOSE_TO_ANOTHER_TOWN                             :{WHITE}... too close to another town
 STR_ERROR_TOO_MANY_TOWNS                                        :{WHITE}... too many towns
 STR_ERROR_NO_SPACE_FOR_TOWN                                     :{WHITE}... there is no more space on the map
-STR_ERROR_TOWN_EXPAND_WARN_NO_ROADS                             :{WHITE}The town will not build roads. You can enable building of roads via Advanced Settings->Economy->Towns
+STR_ERROR_TOWN_EXPAND_WARN_NO_ROADS                             :{WHITE}The town will not build roads. You can enable building of roads via Advanced Settings->Environment->Towns
 STR_ERROR_ROAD_WORKS_IN_PROGRESS                                :{WHITE}Road works in progress
 STR_ERROR_TOWN_CAN_T_DELETE                                     :{WHITE}Can't delete this town...{}A station or depot is referring to the town or a town owned tile can't be removed
 STR_ERROR_STATUE_NO_SUITABLE_PLACE                              :{WHITE}... there is no suitable place for a statue in the centre of this town