[krbdev.mit.edu #6018] Support for recovering from broken rcache

[Tom Yu via RT]

"Alexandra Ellwood via RT" <rt-comment at krbdev.mit.edu> writes:

> Should this ticket also include the change to src/kdc/kdc_util.c or 
> should I open a new ticket for that change?

The changes to src/kdc/kdc_util.c are (mostly) redundant because it
the kdc_util.c code explicitly does a krb5_rc_recover() followed by
krb5_rc_initialize() if that fails, which is almost exactly what
krb5_rc_recover_or_initialize() does.

If you would like to introduce a change to use recover_or_initialize
for stylistic reasons, feel free to open a new ticket for that.