[Toybox] A couple of minor fixes

[Mike Moreton]

> Let's leave this out of toybox for now. Glibc "2.24" in OpenEmbedded is a bit premature as upstream glibc doesn't seem > to have released 2.24 yet. It's probably been updated due to the jump to gcc 6.1 breaking things in older glibc releases. > When it all settles down I'll give this another look and see if the issue still remains.

We just ran into the grep INT_MAX issue with Glibc 2.19...