Fix some issues reported by lintian

debian/control

@@ -4,7 +4,7 @@ Priority: optional
 Maintainer: syslog-ng maintainers <syslog-ng-maintainers@alioth-lists.debian.net>
 Uploaders: Laszlo Boszormenyi (GCS) <gcs@debian.org>,
            SZALAY Attila <sasa@debian.org>
-Build-Depends: debhelper (>= 10~),
+Build-Depends: debhelper-compat (= 13),
                automake,
                autoconf-archive,
                tzdata,
@@ -37,7 +37,7 @@ Build-Depends: debhelper (>= 10~),
                librdkafka-dev (>= 1.0.0),
                pylint (>= 2.4.0) | pylint3,
 Build-Conflicts: autoconf2.13
-Standards-Version: 4.5.0
+Standards-Version: 4.6.2
 Homepage: https://www.syslog-ng.com/
 Vcs-Git: https://github.com/gcsideal/syslog-ng-debian.git
 Vcs-Browser: https://github.com/gcsideal/syslog-ng-debian
@@ -540,7 +540,6 @@ Description: Enhanced system logging daemon (Kafka destination, based on librdka
 Package: syslog-ng-mod-extra
 Depends: syslog-ng-scl, ${misc:Depends}
 Architecture: all
-Priority: optional
 Section: oldlibs
 Description: transitional package
  This is a transitional package. It can safely be removed.

debian/rules

@@ -197,7 +197,7 @@ override_dh_python3:
 ##
 
 override_dh_missing:
-	dh_missing $(shell awk '{sub(/.*\//, "", $$1); print "-X"$$2$$1}' debian/syslog-ng-scl.install) --fail-missing
+	dh_missing $(shell awk '{sub(/.*\//, "", $$1); print "-X"$$2$$1}' debian/syslog-ng-scl.install)
 
 # By default, the arch:all syslog-ng package does not need anything
 # built, so build-indep shall be empty. This avoids triggering another
@@ -208,4 +208,4 @@ build-indep: ;
 
 # And for the rest, there is debhelper!
 %:
-	dh $@ --with autoreconf,python3
+	dh $@ --with python3

debian/upstream/metadata

@@ -0,0 +1,5 @@
+---
+Bug-Database: https://github.com/syslog-ng/syslog-ng/issues
+Bug-Submit: https://github.com/syslog-ng/syslog-ng/issues/new
+Repository: https://github.com/syslog-ng/syslog-ng.git
+Repository-Browse: https://github.com/syslog-ng/syslog-ng