sullivan@chromium.org is build bucket WRITER

cr-buildbucket.cfg

 # Defines buckets on cr-buildbucket.appspot.com, used by to schedule builds
 # on buildbot. In particular, CQ uses some of these buckets to schedule tryjobs.
 #
 # See http://luci-config.appspot.com/schemas/projects:buildbucket.cfg for
 # schema of this file and documentation.
 #
 # Please keep this list sorted by bucket name.
 
 buckets {
   name: "master.tryserver.client.catapult"
   acls {
     role: READER
     group: "all"
   }
   acls {
     role: SCHEDULER
     group: "service-account-cq"
   }
   acls {
     role: WRITER
     group: "service-account-chromium-tryserver"
   }
   acls {
     role: SCHEDULER
     group: "project-chromium-tryjob-access"
   }
+  acls {
+    role: WRITER
+    identity: "sullivan@chromium.org"
+  }
 }