gnucash maint: fix missing chmod +x in configure.ac

[John Ralls]

Updated	 via  https://github.com/Gnucash/gnucash/commit/57e7ba86 (commit)
	from  https://github.com/Gnucash/gnucash/commit/f3826953 (commit)



commit 57e7ba869db504989b694451bdf066cbaeddd21e
Author: Ryan Tucker <git at ryantucker.us>
Date:   Tue Dec 6 15:27:28 2016 -0800

    fix missing chmod +x in configure.ac



Summary of changes:
 configure.ac | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)