krb5: new tag kfw-4.2-beta1

[Greg Hudson]

A new lightweight tag "kfw-4.2-beta1" has been created in the krb5
repository for the following commit:

commit 87bee149469b3a71fa31c01e8aa6c6c10883cfc2
Author: Greg Hudson <ghudson at mit.edu>
Date:   Tue Apr 2 11:23:01 2019 -0400

    Updates for kfw-4.2-beta1