[pacman-dev] document the -Qii option.

I suppose -Qii could be used for other things than displaying the list of backup files, but currently, it's the only one, so that's how I documented it.. Signed-off-by: Chantry Xavier --- doc/pacman.8.txt | 4 +++- src/pacman/pacman.c | 2 +- 2 files changed, 4 insertions(+), 2 deletions(-)