Fix for grub example (kernel.c)

[Stefanus Du Toit]

Hello Grub developers,

kernel.c in docs/ (and the corresponding texi file) has a small mistake:
in the loop that's supposed to iterate over all the modules,
sizeof(module_t) is added to mod. But mod is already a pointer to
module_t! 

The (trivial) patch is attached.

Enjoy,

Stefanus

-- 
Stefanus Du Toit <address@hidden>, <address@hidden>
  Computer Graphics Lab, University of Waterloo
  My e-mail may be flaky over the next little while. If you're having
  trouble getting through to me, e-mail address@hidden

grub-example.patch
Description: Text document