gnucash maint: Fix crash when running check & repair on an open AP/AR register

[Geert Janssens]

Updated	 via  https://github.com/Gnucash/gnucash/commit/efc8544f (commit)
	from  https://github.com/Gnucash/gnucash/commit/23d0f79d (commit)



commit efc8544ff97bf732ae92741ed3916d3c52c1b84c
Author: Geert Janssens <janssens-geert at telenet.be>
Date:   Sat Dec 20 12:10:20 2014 +0100

    Fix crash when running check & repair on an open AP/AR register
    
    This was reported in comment 15 of https://bugzilla.gnome.org/show_bug.cgi?id=741418



Summary of changes:
 src/engine/Scrub.c | 3 +++
 1 file changed, 3 insertions(+)