message: add prctl(PR_SET_PDEATHSIG, SIGTERM)
diff: #include "server.h"
  #include <sys/wait.h>
  +#ifdef __linux__
  +#include <sys/prctl.h>
  +#endif
  typedef struct
  {
  @@ -285,6 +288,9 @@ static int swManager_loop(swServer *serv)
  swSignal_add(SIGRTMIN, swManager_signal_handler);
  #endif
  //swSignal_add(SIGINT, swManager_signal_handler);
  +#ifdef __linux__
  + prctl(PR_SET_PDEATHSIG, SIGTERM);
  +#endif
  if (serv->manager_alarm > 0)
  {
  