gnucash maint: Attempt to fix Travis test failure.

[John Ralls]

Updated	 via  https://github.com/Gnucash/gnucash/commit/9ac13aa8 (commit)
	from  https://github.com/Gnucash/gnucash/commit/fbc827ad (commit)



commit 9ac13aa86db6605c8970a5fb17f1412668fa41cd
Author: John Ralls <jralls at ceridwen.us>
Date:   Mon Aug 1 07:32:20 2016 -0700

    Attempt to fix Travis test failure.



Summary of changes:
 src/report/report-system/test/Makefile.am | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)