The big NULL replacement party part 2.

This may take a bit. Trying to do this by operator/command.

src/StepMania.cpp

@@ -765,7 +765,7 @@ RageDisplay *CreateDisplay()
 			RageException::Throw( ERROR_UNKNOWN_VIDEO_RENDERER.GetValue(), sRenderer.c_str() );
 		}
 
-		if( pRet == NULL )
+		if( pRet == nullptr )
 			continue;
 
 		RString sError = pRet->Init( params, PREFSMAN->m_bAllowUnacceleratedRenderer );
@@ -780,7 +780,7 @@ RageDisplay *CreateDisplay()
 		break; // the display is ready to go
 	}
 
-	if( pRet == NULL)
+	if( pRet == nullptr)
 		RageException::Throw( "%s", error.c_str() );
 
 	return pRet;
@@ -791,7 +791,7 @@ static void SwitchToLastPlayedGame()
 	const Game *pGame = GAMEMAN->StringToGame( PREFSMAN->GetCurrentGame() );
 
 	// If the active game type isn't actually available, revert to the default.
-	if( pGame == NULL )
+	if( pGame == nullptr )
 		pGame = GAMEMAN->GetDefaultGame();
 
 	if( !GAMEMAN->IsGameEnabled( pGame ) && pGame != GAMEMAN->GetDefaultGame() )
@@ -1022,7 +1022,7 @@ int main(int argc, char* argv[])
 
 	// This requires PREFSMAN, for PREFSMAN->m_bShowLoadingWindow.
 	LoadingWindow *pLoadingWindow = LoadingWindow::Create();
-	if(pLoadingWindow == NULL)
+	if(pLoadingWindow == nullptr)
 		RageException::Throw("%s", COULDNT_OPEN_LOADING_WINDOW.GetValue().c_str());
 
 	srand( time(NULL) ); // seed number generator