Change NOHUP to SIGHUP based on feedback
Change NOHUP to SIGHUP based on feedback

Closes #2332.
influxdata/docs.influxdata.com,influxdata/docs.influxdata.com,influxdata/docs.influxdata.com,influxdata/docs.influxdata.com,influxdata/docs.influxdata.com,influxdb/docs.influxdata.com,influxdb/docs.influxdata.com,influxdb/docs.influxdata.com