Cosmetic: declare local variables in Pre-Compile.sh
Cosmetic: declare local variables in Pre-Compile.sh

Follow the same style used earlier in the code and declare local
variables with the 'local' directive.

Signed-off-by: Jean-Baptiste Kempf <7b85a41a628204b76aba4326273a3ccc74bd009a@videolan.org>

CollabraMusic/VLCKit,i386/vlckit,brion/VLCKit,waterskier2007/VLCKit,kamcord/VLCKit,kamcord/VLCKit,hpsoar/VLCKit,siuying/VLCKit,waterskier2007/VLCKit,strukturag/VLCKit,siuying/VLCKit,programming086/VLCKit,larrytin/VLCKit,simon1984/test,waterskier2007/VLCKit,programming086/VLCKit,simon1984/test,kamcord/VLCKit,CollabraMusic/VLCKit,CollabraMusic/VLCKit,hpsoar/VLCKit,siuying/VLCKit,larrytin/VLCKit,simon1984/test,strukturag/VLCKit