Update action_class_concept.c
Minor change to kick off Travis again so I can merge this PR
@@ -208,8 +208,9 @@ static void destroy(grib_context* context, grib_action* act)
grib_action_concept* self = (grib_action_concept*)act;
grib_concept_value* v = self->concept;
- if (v)
+ if (v) {
grib_trie_delete_container(v->index);
+ }
while (v) {
grib_concept_value* n = v->next;
grib_concept_value_delete(context, v);
