gnucash maint: xxxgtk_textview_get_text returns a char* which must be freed, redux

[Christopher Lam]

Updated	 via  https://github.com/Gnucash/gnucash/commit/9a141a8c (commit)
	from  https://github.com/Gnucash/gnucash/commit/8f1794cb (commit)



commit 9a141a8c761b797d2643ff3f0e984bbb4f076721
Author: Christopher Lam <christopher.lck at gmail.com>
Date:   Tue Oct 18 21:39:34 2022 +0800

    xxxgtk_textview_get_text returns a char* which must be freed, redux
    
    xxxgtk_textview_get_text may return "" whose strlen is zero, and the
    previous code would fail to free it. reword this code to ensure it is
    freed appropriately.



Summary of changes:
 gnucash/gnome/gnc-plugin-page-budget.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)