These case insensitive comparisons didn't work in some locales, like tr_TR
where upper(i) != I. So a second case sensitive comparison had to be made
for each directive.
Only keeping case sensitive comparisons make the code cleaner and treat all
locales equally.
Ref: http://www.archlinux.org/pipermail/pacman-dev/2008-March/011445.html
Also fix pactests to use the correct case.
Signed-off-by: Chantry Xavier <shiningxc@gmail.com>
Signed-off-by: Dan McGee <dan@archlinux.org>
