Title: #623: client install: do not assume /etc/krb5.conf.d exists
FYI: `/etc/krb5.conf.d` is not default include directory it is fedora/el7
debian testing has MIT kerberos 1.15 and `/etc/krb5.conf.d` does not exist
there as is not included in /etc/krb5.conf.
So +1 for @HonzaCholasta approach.
See the full comment at
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