$OpenBSD: patch-renderer_RenderSystem_cpp,v 1.1.1.1 2019/09/02 18:04:40 thfr Exp $

fix vararg clang error, see
https://stackoverflow.com/questions/14432539/c-passing-classes-to-vararg-function

Index: renderer/RenderSystem.cpp
--- renderer/RenderSystem.cpp.orig
+++ renderer/RenderSystem.cpp
@@ -856,7 +856,7 @@ void idRenderSystemLocal::CaptureRenderToImage( idImag
 		session->writeDemo->WriteHashString( image.imgName );
 
 		if ( r_showDemo.GetBool() )
-		{ common->Printf( "write DC_CAPTURE_RENDER: %s\n", image.imgName ); }
+		{ common->Printf( "write DC_CAPTURE_RENDER: %s\n", static_cast<const char*>(image.imgName) ); }
 	}
 
 	renderCrop_t &rc = renderCrops[currentRenderCrop];
