ref: 2449ed0980f4119a0d2ae141b2ee79529a7ff8df
parent: 3dd075b4624ceaeff466b9cfe5bfe7bd5a694ae6
author: Marc-Alexandre Espiaut <marcalexandre@member.fsf.org>
date: Tue Jun 5 08:23:03 EDT 2018
Removing obsolete *TEST and DEVELOPMENT code from z_zone.c