From cb80bd270e3af8420b0bc080357769209d4a9c84 Mon Sep 17 00:00:00 2001
From: Herman Slatman <hslatman@users.noreply.github.com>
Date: Mon, 27 Mar 2017 15:05:52 +0200
Subject: [PATCH] Fix PHP 7 only coalesce syntax

---
 slack.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/slack.php b/slack.php
index 8cc6b04..14ba20d 100644
--- a/slack.php
+++ b/slack.php
@@ -105,7 +105,7 @@
         '{{stage}}'        => $stage,
         '{{user}}'         => $user,
         '{{branch}}'       => $branch,
-        '{{app_name}}'     => $config['app'] ?? 'app-name',
+        '{{app_name}}'     => isset($config['app']) ? $config['app'] : 'app-name',
     ];
     $config['message'] = strtr($config['message'], $messagePlaceHolders);