krb5: improve comments in get_cred_kdc_capath_worker
krb5: improve comments in get_cred_kdc_capath_worker

Change-Id: I0d47ada32fdc9f7938d69d93022f1daac80d4e88

madscientist159/heimdal,madscientist159/heimdal,madscientist159/heimdal,madscientist159/heimdal,madscientist159/heimdal,madscientist159/heimdal,madscientist159/heimdal