gnucash-on-osx master: Explicitly set buildroot, checkoutroot; provide branches variable.

[John Ralls]

Updated	 via  https://github.com/Gnucash/gnucash-on-osx/commit/cdc962ed (commit)
	from  https://github.com/Gnucash/gnucash-on-osx/commit/de4bbfda (commit)



commit cdc962edfa30880609ad092912f713113e390193
Author: John Ralls <jralls at ceridwen.us>
Date:   Sun Oct 6 10:33:59 2019 -0700

    Explicitly set buildroot, checkoutroot; provide branches variable.



Summary of changes:
 jhbuildrc-custom | 3 +++
 1 file changed, 3 insertions(+)