kinit uses libdefaults in krb5.conf instead of appdefaults

[Nate Yocom]

In looking at things, and a quick browse of the code, the [appdefaults]
section of krb5.conf is never used by kinit and the other 'built in'
tools - instead they use [libdefaults].  I'm just wondering as to the
thinking here, should kinit (as an application) use appdefaults? Or does
"application" in this sense mean 'third party'?

Thanks,
Nate