installer: Fix selecting msys-coreutils-ext and mingw32-gnupg

Add a missing trailing space after "msys-coreutils-ext" to separate it
from "mingw32-gnupg".

Signed-off-by: Thomas Braun <thomas.braun@byte-physics.de>
Signed-off-by: Sebastian Schuberth <sschuberth@gmail.com>
installer: Sort packages alphabetically

Signed-off-by: Sebastian Schuberth <sschuberth@gmail.com>