[LyX/master] ar.po: some updates from Hatim

[Uwe Stöhr]

commit 4ff212acec222584f9edea5422830317de3114ef
Author: Uwe Stöhr <uwesto...@lyx.org>
Date:   Fri Mar 9 05:48:56 2018 +0100

    ar.po: some updates from Hatim

 po/ar.po | 1599 +++++++++++++++++++++++++++++---------------------------------
 1 files changed, 739 insertions(+), 860 deletions(-)