Improve AP changelog entry about layout method with nil return

Add a note about getting the "no layout" behavior by returning "false"
to make it easier for people that might need to change their code.

Related to #8458. [ci skip]

1 files changed, 4 insertions, 4 deletions

diff --git a/actionpack/CHANGELOG.md b/actionpack/CHANGELOG.md
index 586b15a62d..85f943814e 100644
--- a/actionpack/CHANGELOG.md
+++ b/actionpack/CHANGELOG.md
@@ -1,7 +1,7 @@
 ## Rails 4.0.0 (unreleased) ##
 
 *   Ensure consistent fallback to the default layout lookup for layouts set
-    using symbols or procs that return nil.
+    using symbols or procs that return `nil`.
 
     All of the following layouts will result in the default layout lookup:
 
@@ -10,13 +10,13 @@
         layout proc { nil }
 
         layout :returns_nil
-
         def returns_nil
           nil
         end
 
-    Previously symbols and procs which returned nil resulted in no layout which
-    differed from the `layout nil` behavior.
+    Previously symbols and procs which returned `nil` resulted in no layout which
+    differed from the `layout nil` behavior. To get the "no layout" behavior just
+    return `false` instead of `nil` for `layout`.
 
     *Chris Nicola*