A couple small fixes and very cool project

[ghaerr]

Hello @klange,

Quite a neat project you have here! I happened to be browsing the source and like your work on the dynamic linker as well as the compositor, pretty cool :)

While looking around, I quickly noticed these couple problems in the kernel atoi and linker. They seem pretty obvious, but I haven't tested them at all, as I'm running macOS and I'm guessing that toaruos isn't so easy to compile on my platform.

I maintain the Microwindows Project from long ago. One of these days, I hope to convert its window system to use a compositor, much like yours.

Thank you!