d/rules: add debian/debian-cd.docs and use that.

Signed-off-by: Holger Levsen <holger@layer-acht.org>

debian/changelog

@@ -46,7 +46,9 @@ debian-cd (3.1.22) UNRELEASED; urgency=medium
     - don't recommend syslinux-utils twice, thanks lintian.
     - bump standards version to 4.3.0, no changes needed.
     - add "Rules-Requires-Root: no" to support building as non-root.
-  * d/rules: use the awesome "dh $@" simplification.
+  * d/rules:
+    - use the awesome "dh $@" simplification.
+    - add debian/debian-cd.docs and use that.
   * Add lintian override for missing-depends-on-sensible-utils as
     sensible-editor is merely mentioned in the README.
   * d/copyright: explicitly refer to /usr/share/common-licenses/GPL-2.

debian/debian-cd.docs

@@ -0,0 +1,2 @@
+DEDICATION.txt
+README*

debian/rules

@@ -24,6 +24,3 @@ override_dh_auto_install:
 		generate_firmware_images iso_run jigdo-watcher \
 		merge-sums mkjigsnap mklist mktorrent \
 		report_build_error testingcds
-
-override_dh_installdocs:
-	dh_installdocs README* DEDICATION.txt