scf_tmpl_pg_description
if (scf_tmpl_pg_description(pgt, NULL, &buf) > 0) {
if (tmpl == 1 && scf_tmpl_pg_description(pt, NULL, &desc) > 0) {
ssize_t scf_tmpl_pg_description(const scf_pg_tmpl_t *, const char *, char **);