(svn r11777) -Codechange: split the string header and make do not include it when it's not necessary.

src/engine.cpp

@@ -17,7 +17,6 @@
 #include "newgrf_cargo.h"
 #include "table/engines.h"
 #include "group.h"
-#include "string.h"
 #include "misc/autoptr.hpp"
 #include "strings_func.h"
 #include "viewport.h"
@@ -26,6 +25,7 @@
 #include "date_func.h"
 #include "autoreplace_base.h"
 #include "autoreplace_gui.h"
+#include "string_func.h"
 
 EngineInfo _engine_info[TOTAL_NUM_ENGINES];
 RailVehicleInfo _rail_vehicle_info[NUM_TRAIN_ENGINES];