Roll recipe dependencies (trivial).

This is an automated CL created by the recipe roller. This CL rolls recipe
changes from upstream projects (e.g. depot_tools) into downstream projects
(e.g. tools/build).


More info is at https://goo.gl/zkKdpD. Use https://goo.gl/noib3a to file a bug
(or complain)

recipe_engine:
  https://crrev.com/a9d53aaab5486130b29feb22ca1425c2c42af358 recipe engine: remove Path.default_tostring_fn (phajdan.jr@chromium.org)

R=phajdan.jr@chromium.org
BUG=chromium:605919

TBR=martiniss@chromium.org,phajdan.jr@chromium.org

Review-Url: https://codereview.chromium.org/1937833002

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/depot_tools@300391 0039d316-1c4b-4281-b951-d872f2087c98

infra/config/recipes.cfg

@@ -5,5 +5,5 @@ deps {
   project_id: "recipe_engine"
   url: "https://chromium.googlesource.com/external/github.com/luci/recipes-py.git"
   branch: "master"
-  revision: "e3081f3e9b9592caa464400604e8f134f07e932f"
+  revision: "a9d53aaab5486130b29feb22ca1425c2c42af358"
 }