File roundcubemail-1.4-config_dir.patch of Package roundcubemail

diff -ruN a/program/include/iniset.php b/program/include/iniset.php
--- a/program/include/iniset.php	2019-11-19 21:20:09.000000000 +0100
+++ b/program/include/iniset.php	2019-12-05 13:41:31.285974424 +0100
@@ -28,7 +28,7 @@
 }
 
 if (!defined('RCMAIL_CONFIG_DIR')) {
-    define('RCMAIL_CONFIG_DIR', getenv('ROUNDCUBE_CONFIG_DIR') ?: (INSTALL_PATH . 'config'));
+    define('RCMAIL_CONFIG_DIR', getenv('ROUNDCUBE_CONFIG_DIR') ?: '/etc/roundcubemail');
 }
 
 if (!defined('RCUBE_LOCALIZATION_DIR')) {