(svn r20411) -Codechange: rename unmovables as quite a lot of them are actually movable; e.g. HQ and owned land are pretty movable.

src/station_cmd.cpp

@@ -3495,7 +3495,7 @@ CommandCost ClearTile_Station(TileIndex tile, DoCommandFlag flags)
 			case STATION_DOCK:     return_cmd_error(STR_ERROR_MUST_DEMOLISH_DOCK_FIRST);
 			case STATION_OILRIG:
 				SetDParam(1, STR_INDUSTRY_NAME_OIL_RIG);
-				return_cmd_error(STR_ERROR_UNMOVABLE_OBJECT_IN_THE_WAY);
+				return_cmd_error(STR_ERROR_GENERIC_OBJECT_IN_THE_WAY);
 		}
 	}