hooks/debian/20-setup-apt: Use blacklist for libc6-xen instead of whitelist

debian/changelog

@@ -26,6 +26,8 @@ xen-tools (4.3~dev-1) UNRELEASED; urgency=low
     - Also disable initctl in the chroot, not only start-stop-daemon
       (LP: #997063; Thanks xstasi!)
     - Massive code deduplication in hooks directory
+    - Use release blacklist for libc6-xen instead of whitelist in
+      hooks/debian.d/20-setup-apt
   * Add dependency on openssh-client for ssh-keygen (Closes: #649108)
   * Use dh_auto_test for build time tests and add according
     build-dependencies on devscripts and libfile-slurp-perl.

hooks/debian/20-setup-apt

@@ -104,12 +104,12 @@ if [ "`uname -m`" = "x86_64" ]; then
 else
 
     case "${dist}" in
-        etch|lenny|sid)
+        *)
             logMessage "Installing xen-aware libc6"
     
             installDebianPackage ${prefix} libc6-xen
             ;;
-        *)
+        sarge)
             logMessage "Disabling TLS"
             mv ${prefix}/lib/tls ${prefix}/lib/tls.disabled
             mkdir ${prefix}/lib/tls