gnucash maint: Fix our appstream id as per the appstream recommendation

[Geert Janssens]

Updated	 via  https://github.com/Gnucash/gnucash/commit/6f181196 (commit)
	from  https://github.com/Gnucash/gnucash/commit/e4d1c7de (commit)



commit 6f181196d576cfc8601398864a3b8f8c3c8b01cb
Author: Geert Janssens <geert at kobaltwit.be>
Date:   Wed Jan 17 15:40:03 2018 +0100

    Fix our appstream id as per the appstream recommendation
    
    https://www.freedesktop.org/software/appstream/docs/sect-Metadata-Application.html



Summary of changes:
 src/gnome/gnucash.appdata.xml.in | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)