gnucash maint: [invoice.scm] Use full header for initial screen

[Christopher Lam]

Updated	 via  https://github.com/Gnucash/gnucash/commit/23de9588 (commit)
	from  https://github.com/Gnucash/gnucash/commit/6eb2e36c (commit)



commit 23de958872a51080a72c75a9a63c0171e877d2c4
Author: Christopher Lam <christopher.lck at gmail.com>
Date:   Thu Oct 1 23:49:09 2020 +0800

    [invoice.scm] Use full header for initial screen
    
    instead of a single-line error line



Summary of changes:
 gnucash/report/reports/standard/invoice.scm | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)