Add xz compressed packages to known extensions of dl_cleanup

Add .tar.xz, .txz, and .orig.tar.xz as known extensions to dl_cleanup.py.

Signed-off-by: Ian Leonard <antonlacon@gmail.com>
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@35645 3c298f89-4303-0410-b956-a3cf2f4a3e73

scripts/dl_cleanup.py

@@ -3,7 +3,8 @@
 # OpenWRT download directory cleanup utility.
 # Delete all but the very last version of the program tarballs.
 #
-# Copyright (c) 2010 Michael Buesch <mb@bu3sch.de>
+# Copyright (C) 2010 Michael Buesch <mb@bu3sch.de>
+# Copyright (C) 2013 OpenWrt.org
 """
 
 import sys
@@ -75,11 +76,14 @@ def parseVer_GIT(match, filepath):
 extensions = (
 	".tar.gz",
 	".tar.bz2",
+	".tar.xz",
 	".orig.tar.gz",
 	".orig.tar.bz2",
+	".orig.tar.xz",
 	".zip",
 	".tgz",
 	".tbz",
+	".txz",
 )
 
 versionRegex = (