diff -ur syslog-ng-syslog-ng-4.2.0.orig/lib/merge-grammar.py syslog-ng-syslog-ng-4.2.0/lib/merge-grammar.py
--- syslog-ng-syslog-ng-4.2.0.orig/lib/merge-grammar.py	2023-05-10 16:55:07.000000000 +0200
+++ syslog-ng-syslog-ng-4.2.0/lib/merge-grammar.py	2023-07-19 15:46:23.419436837 +0200
@@ -1,4 +1,4 @@
-#!/usr/bin/env python3
+#!/usr/bin/python3
 #############################################################################
 # Copyright (c) 2010-2017 Balabit
 #