gnucash master: L12N:ja: Update from translation project

[Frank H.Ellenberger]

Updated	 via  https://github.com/Gnucash/gnucash/commit/95b552fa (commit)
	from  https://github.com/Gnucash/gnucash/commit/602161ff (commit)



commit 95b552fa50b24bfe1716b679c234a25e16610914
Author: YOSHINO Yoshihito <yy.y.ja.jp at gmail.com>
Date:   Fri Jul 3 02:46:00 2020 +0200

    L12N:ja: Update from translation project
    
    4861 translated messages, 373 fuzzy translations, 317 untranslated
    messages.



Summary of changes:
 po/ja.po | 8158 +++++++++++++++++++-------------------------------------------
 1 file changed, 2437 insertions(+), 5721 deletions(-)