Revert drop of Exhibit B on MPL 2.0

Author: dcorbacho

LICENSE-MPL-RabbitMQ

@@ -35,7 +35,7 @@ Mozilla Public License Version 2.0
     means any form of the work other than Source Code Form.
 
 1.7. "Larger Work"
-    means a work that combines Covered Software with other material, in
+    means a work that combines Covered Software with other material, in 
     a separate file or files, that is not Covered Software.
 
 1.8. "License"
@@ -364,4 +364,10 @@ file, then You may include the notice in a location (such as a LICENSE
 file in a relevant directory) where a recipient would be likely to look
 for such a notice.
 
-Copyright (c) 2007-2020 VMware, Inc. or its affiliates.
+You may add additional accurate notices of copyright ownership.
+
+Exhibit B - "Incompatible With Secondary Licenses" Notice
+---------------------------------------------------------
+
+  This Source Code Form is "Incompatible With Secondary Licenses", as
+  defined by the Mozilla Public License, v. 2.0.