gnucash maint: [income-gst-statement] amend headers post Brexit

[Christopher Lam]

Updated	 via  https://github.com/Gnucash/gnucash/commit/37afd65f (commit)
	from  https://github.com/Gnucash/gnucash/commit/d60d5c30 (commit)



commit 37afd65f2668cc8ff56b5b2eb55027f8b4e327fc
Author: Christopher Lam <christopher.lck at gmail.com>
Date:   Thu Apr 29 07:06:57 2021 +0800

    [income-gst-statement] amend headers post Brexit
    
    UK left EU, therefore VAT headers have now changed.



Summary of changes:
 .../report/reports/standard/income-gst-statement.scm   | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)