message: Change fatal event handling message
  The new message explains the segmentation fault raised when handling
  a fatal event. Closes
diff: @@ -27,9 +27,9 @@ namespace Svc {
  FwEventIdType Id) {
  // for **nix, delay then exit with error code
  Fw::Logger::logMsg("FATAL %d handled.\n",(U32)Id,0,0,0,0,0);
  - (void)raise( SIGTERM );
  (void)Os::Task::delay(1000);
  - Fw::Logger::logMsg("Exiting.\n",0,0,0,0,0,0);
  + Fw::Logger::logMsg("Exiting with segfault and core dump file.\n",0,0,0,0,0,0);
  + (void)raise( SIGSEGV );
  exit(1);
  }
  