migrate to dh >= 9 short notation

debian/compat

@@ -1 +1 @@
-7
+9

debian/control

@@ -1,8 +1,8 @@
 Source: knockd
 Section: net
 Priority: optional
-Maintainer: Leo Costela <costela@debian.org>
-Build-Depends: debhelper (>= 7), cdbs (>= 0.4.10), autotools-dev, libpcap0.8-dev
+Maintainer: Leo Antunes <costela@debian.org>
+Build-Depends: debhelper (>= 9.20160709~), autotools-dev, libpcap0.8-dev
 Standards-Version: 3.9.8
 Homepage: http://www.zeroflux.org/projects/knock
 

debian/rules

@@ -1,11 +1,5 @@
 #!/usr/bin/make -f
 
-# export DH_VERBOSE=1
-
-include /usr/share/cdbs/1/rules/debhelper.mk
-include /usr/share/cdbs/1/rules/simple-patchsys.mk
-include /usr/share/cdbs/1/class/autotools.mk
-
-binary-predeb/knockd::
-	chmod 640 $(CURDIR)/debian/knockd/etc/knockd.conf
+%:
+	dh $@ --with autotools-dev