Replacing iterating over rootpath by strsep

[kczekirda]

Summary

Replacing iteration over chars array by strsep.

Sponsored by: Oktawave

Test Plan

Tested on:

option root-path "192.168.22.1:/tftproot";
option root-path "/tftproot";

[oshogbo]

I reviewed that earlier.
If you guys accept that I will commit it.

[tsoome]

LGTM.

[jhb]

sys/boot/common/dev_net.c

397

Not sure if strlcpy() is defined to handle overlapping regions? In that case I think you may want to stick with memmove/bcopy here as those handle overlapping copies.

[jhb]

sys/boot/common/dev_net.c

397

Thanks, my last suggestion / nit would be to fix the old style bug since you are changing this line anyway and put spaces around the '+'.