gnucash maint: Improve filtering in git-release-notes.pl

[John Ralls]

Updated	 via  https://github.com/Gnucash/gnucash/commit/2d456913 (commit)
	from  https://github.com/Gnucash/gnucash/commit/76a4389a (commit)



commit 2d456913f80dca28c3bacb61d65e96c013aec962
Author: John Ralls <jralls at ceridwen.us>
Date:   Fri Mar 26 10:45:11 2021 -0700

    Improve filtering in git-release-notes.pl
    
    Find and aggregate all translation commits to the program,
    ignoring those to the glossary and summary-only non-translation L10N items.
    Ignore summary-only merge commits.



Summary of changes:
 util/git-release-notes.pl | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)