Manually roll recipe engine d7f80ca:e2b4fd5

TBR=iannucci

Bug: None
Change-Id: Iab6ab1f8ad19d3b6b5496f907ef001eec3d2d9e7
Reviewed-on: https://chromium-review.googlesource.com/471426Reviewed-by: Paweł Hajdan Jr. <phajdan.jr@chromium.org>
Commit-Queue: Paweł Hajdan Jr. <phajdan.jr@chromium.org>

infra/config/recipes.cfg

@@ -3,7 +3,7 @@
   "deps": {
     "recipe_engine": {
       "branch": "master",
-      "revision": "d7f80cacbb5c61e5bdaaff122fb5ab0ea7b58345",
+      "revision": "e2b4fd5362e043dc66e85f5c342e414c5bfb89de",
       "url": "https://chromium.googlesource.com/external/github.com/luci/recipes-py.git"
     }
   },