debian/rules: replace deprecated dh_clean -k with dh_prep

diff --git a/debian/rules b/debian/rules
index 483e6cd..0a3a823 100755 (executable)
--- a/debian/rules
+++ b/debian/rules
@@ -24,7 +24,7 @@ clean:
 install: build
        dh_testdir
        dh_testroot
-       dh_clean -k 
+       dh_prep
        dh_installdirs etc/skel
 
        cp -a etc/skel debian/grml-desktop/etc/