Tweak lxc-template as an attempt to make it compatible with Ubuntu 13.10 [GH-150]

CHANGELOG.md

@@ -1,5 +1,8 @@
 ## [0.6.4](https://github.com/fgrehm/vagrant-lxc/compare/v0.6.3...master) (unreleased)
 
+IMPROVEMENTS:
+
+  - Make `lxc-template` compatible with Ubuntu 13.10 [#150](https://github.com/fgrehm/vagrant-lxc/issues/150)
 
 ## [0.6.3](https://github.com/fgrehm/vagrant-lxc/compare/v0.6.2...v0.6.3) (Oct 12, 2013)
 

boxes/common/lxc-template

@@ -40,8 +40,8 @@ extract_rootfs()
     rootfs=$3
 
     echo "Extracting $tarball ..."
-    mkdir -p $(dirname $rootfs)
-    (cd `dirname $rootfs` && tar xfz $tarball)
+    mkdir -p $rootfs
+    (cd $rootfs && tar xfz $tarball --strip-components=2)
     return 0
 }