[dev.inline] add back in codereview.cfg

Add back in an appropriately set up codereview.cfg for this work
branch.

Change-Id: I0e9f649da31c6ea1cbf8ddc1d906c20c41248721
Reviewed-on: https://go-review.googlesource.com/c/go/+/507157
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
TryBot-Bypass: Than McIntosh <thanm@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
diff --git a/codereview.cfg b/codereview.cfg
index 77a74f1..cfba237 100644
--- a/codereview.cfg
+++ b/codereview.cfg
@@ -1 +1,2 @@
-branch: master
+branch: dev.inline
+parent-branch: master