gnucash maint: Shorten a german column header

[Frank H.Ellenberger]

Updated	 via  https://github.com/Gnucash/gnucash/commit/609bd48a (commit)
	from  https://github.com/Gnucash/gnucash/commit/fce75ea7 (commit)



commit 609bd48a0dcbfde2f281535485cf7e31c45d046d
Author: Frank H. Ellenberger <frank.h.ellenberger at gmail.com>
Date:   Fri Feb 22 05:03:47 2019 +0100

    Shorten a german column header



Summary of changes:
 po/de.po | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)