Mac 1.5.2 Pack STDOUT (Damage) Spam in console

[Arii1986]

Hey guys - I have no idea why but my console is being spammed by STDOUT (Damage) - this wouldn't be a problem for me but it seems to be affecting my FPS considerably - any ideas?

I googled this earlier and other people were having this issue with rubber boots but I do not have these

 

[Arii1986]

Here's a pastebin if it helps anyone diagnose the problem

http://pastebin.com/Din7jW9M

You can see at the bottom a load of STDOUT spammage