fixup merging unique Georgian catalog

fixup merging unique Georgian catalog

We got the Georgian translation submitted for each of our UI parts
separately in four PO files (PVE, PBS, PMG and widget-toolkit), and
when merging that I had to firs make them unique (as msgmerge cannot
cope with duplicates in any way and dies), but there I did made the
mistake to use the `--unique` option when executing `msguniq`, which
does not merges duplicates, but drops them.

This lead to loss of information that I now fixed up by redoing the
`msguniq` without the -u flag before normalizing them again via `make
do_update`.

Contributed-by: Ekaterine Papava <papava.e@gtu.ge>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>