I've recently learned to add --flush-stdout to my game shortcut, and managed to use it to locate an error on game start up. But After that, I hear my driver noises loudly, busy on writing tons of "=============gameh 923" into the log file. So I wonder if it's intended, or I did something wrong? And if anyone knows, what's this magic word mean?
Comments will be appreciated

Edit: OK, it seems that if you put a "print(something)" into the code, that "something" will get write into the log file when this code runs. And, in engine/Tooltip.lua, there are a "print something" right before init function. That gameh means my game window height is 923.