a_default = find_entity( config, XML_CIB_TAG_NVPAIR, name, FALSE);
a_default = find_entity(config, XML_CIB_TAG_NVPAIR, name);
get_crm_option(crm_data_t *cib, const char *name, gboolean do_warn) {	const char * value = NULL;	crm_data_t * a_default = NULL;	crm_data_t * config = get_object_root(XML_CIB_TAG_CRMCONFIG, cib);		if(config != NULL) {		a_default = find_entity(			config, XML_CIB_TAG_NVPAIR, name, FALSE);	}		if(a_default == NULL) {		if(do_warn) {			crm_warn("Option %s not set", name);		}		return NULL;	}		value = crm_element_value(a_default, XML_NVPAIR_ATTR_VALUE);	if(safe_str_eq(value, "")) {		value = NULL;	}	return value;	}