debian: Modernize packaging instructions.

debian/control

 Source: ibus-m17n
 Section: utils
 Priority: optional
-Maintainer: IME Packaging Team <[email protected].debian.org>
+Maintainer: Debian Input Method Team <[email protected].debian.org>
 Uploaders:
  Osamu Aoki <[email protected]>,
 Build-Depends:
- autoconf,
- automake,
- debhelper (>= 9),
- dh-autoreconf,
+ debhelper (>= 11),
  libgtk-3-dev,
  libibus-1.0-dev,
  libm17n-dev,
  pkg-config,
-Standards-Version: 3.9.8
-Homepage: https://github.com/ibus/ibus/wiki
-Vcs-Git: https://anonscm.debian.org/git/pkg-ime/ibus-m17n.git
-Vcs-Browser: https://anonscm.debian.org/cgit/pkg-ime/ibus-m17n.git
+Standards-Version: 4.2.1
+Homepage: https://github.com/ibus/ibus-m17n/
+Vcs-Git: https://salsa.debian.org/input-method-team/ibus-m17n.git
+Vcs-Browser: https://salsa.debian.org/input-method-team/ibus-m17n
 
 Package: ibus-m17n
 Architecture: any

debian/copyright

@@ -4,7 +4,7 @@ This package was debianized by:
 
 It was downloaded from:
 
-    https://github.com/ibus/ibus/wiki
+    https://github.com/ibus/ibus-m17n
 
 Upstream Author:
 

debian/rules

@@ -3,7 +3,7 @@
 export DEB_BUILD_MAINT_OPTIONS = hardening=+all
 
 %:
-	dh [email protected] --with autoreconf
+	dh [email protected]
 
 override_dh_auto_configure:
 	dh_auto_configure -- \
@@ -13,3 +13,6 @@ override_dh_auto_configure:
 override_dh_auto_test:
 	# run test but disable failing
 	-dh_auto_test
+
+override_dh_missing:
+	dh_missing --fail-missing