Update Machete for build failure

Chris Maher and Tim Johnson · Chris Maher and Tim Johnson · commit da5065fa8380 · 2014-07-16T11:18:56.000-04:00
diff --git a/cf.Gemfile.lock b/cf.Gemfile.lock
@@ -1,6 +1,6 @@
 GIT
   remote: git://github.com/cf-buildpacks/machete.git
-  revision: 859388693b74af5c797a42e69de982d0da0ba654
+  revision: 6bd9bcd2edc98fd638fe8ea8473ac0cdd4b397db
   branch: master
   specs:
     machete (0.0.1)
