move back krb5_get_err_text to error_string.c for now
move back krb5_get_err_text to error_string.c for now

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