gnucash maint: Remove build_year from translatable copyright string

[Frank H.Ellenberger]

Updated	 via  https://github.com/Gnucash/gnucash/commit/240bc32e (commit)
	from  https://github.com/Gnucash/gnucash/commit/6c8275a7 (commit)



commit 240bc32e57098344a979791b38c4517e337a0fb0
Author: fell <frank.h.ellenberger at gmail.com>
Date:   Mon Sep 11 02:40:03 2017 +0200

    Remove build_year from translatable copyright string



Summary of changes:
 src/core-utils/CMakeLists.txt     | 2 ++
 src/core-utils/Makefile.am        | 1 +
 src/gnome-utils/gnc-main-window.c | 4 +++-
 3 files changed, 6 insertions(+), 1 deletion(-)