Fix the kpasswd fallback from the ccache principal name to the
username in the case where the ccache doesn't exist.


https://github.com/krb5/krb5/commit/cd93ab84c5a2ff0705d3ae113ed63dc03333ca3c
Commit By: ghudson
Revision: 23819
Changed Files:
U   trunk/src/clients/kpasswd/kpasswd.c