Update list for open source requests

Bug: none
Change-Id: I743fc93f8da98b734a746e2983a7c1f651458824
R: xam@chromium.org
Reviewed-on: https://chromium-review.googlesource.com/789885Reviewed-by: Sylvain Defresne <sdefresne@chromium.org>
Commit-Queue: Louis Romero <lpromero@chromium.org>
Cr-Commit-Position: refs/heads/master@{#523420}

docs/adding_to_third_party.md

@@ -118,8 +118,8 @@ following sign-offs. Some of these are accessible to Googlers only. Non-Googlers
 can email one of the people in third_party/OWNERS for help.
 
 * Chrome Eng Review. Googlers should see go/chrome-eng-review (please include information about the additional checkout size, build times, and binary sizes. Please also make sure that the motivation for your project is clear, e.g., a design doc has been circulated).
-* open-source-third-party-reviews@google.com (ping the list with relevant
-  details and a link to the CL).
+* opensource-licensing@google.com (ping the list with relevant details and a
+  link to the CL).
 * security@chromium.org (ping the list with relevant details and a link to the
   CL).