Codechange: Use null pointer literal instead of the NULL macro

src/game/game_scanner.hpp

@@ -23,7 +23,7 @@ public:
 	 * @param nameParam The name of the game script.
 	 * @param versionParam The version of the game script, or -1 if you want the latest.
 	 * @param force_exact_match Only match name+version, never latest.
-	 * @return NULL if no match found, otherwise the game script that matched.
+	 * @return nullptr if no match found, otherwise the game script that matched.
 	 */
 	class GameInfo *FindInfo(const char *nameParam, int versionParam, bool force_exact_match);
 
@@ -44,7 +44,7 @@ public:
 	 * Find a library in the pool.
 	 * @param library The library name to find.
 	 * @param version The version the library should have.
-	 * @return The library if found, NULL otherwise.
+	 * @return The library if found, nullptr otherwise.
 	 */
 	class GameLibrary *FindLibrary(const char *library, int version);