nack_reason      1928 daemons/controld/controld_execd.c     const char *nack_reason = NULL;
nack_reason      1993 daemons/controld/controld_execd.c     nack_reason = should_nack_action(operation);
nack_reason      1994 daemons/controld/controld_execd.c     if (nack_reason != NULL) {
nack_reason      2002 daemons/controld/controld_execd.c                          nack_reason);