message: flags: add a note to --drain-time-s that it applies to LDS
diff: @@ -87,8 +87,9 @@ OptionsImpl::OptionsImpl(int argc, const char* const* argv,
  TCLAP::ValueArg<uint32_t> file_flush_interval_msec("", "file-flush-interval-msec",
  "Interval for log flushing in msec", false,
  10000, "uint32_t", cmd);
  - TCLAP::ValueArg<uint32_t> drain_time_s("", "drain-time-s", "Hot restart drain time in seconds",
  - false, 600, "uint32_t", cmd);
  + TCLAP::ValueArg<uint32_t> drain_time_s("", "drain-time-s",
  + "Hot restart and LDS removal drain time in seconds", false,
  + 600, "uint32_t", cmd);
  TCLAP::ValueArg<uint32_t> parent_shutdown_time_s("", "parent-shutdown-time-s",
  "Hot restart parent shutdown time in seconds",
  false, 900, "uint32_t", cmd);
  