[apparmor] logprof / genprof - displaying profile diff

[Seth Arnold]

> I don't know if genprof/logprof are calling "diff" or have internal diff
> routines. In case "diff" is called, the following options should work:
>    diff  -u -F '{[^}]*$'  old.profile new.profile

That's pretty cool :) I never bothered looking into how diff knew the
C function, I always just assumed diff knew enough C to make it
happen. Hooray for making it easy to add your own content to the rest
of the context line.

Thanks