root@traffic-upload-stretch:/etc/trafficserver# ls -l records.config
-r-------- 1 trafficserver trafficserver 3119 May 13 15:27 records.config
root@traffic-upload-stretch:/etc/trafficserver# traffic_ctl config get proxy.config.http.cache.required_headers
proxy.config.http.cache.required_headers: 2
root@traffic-upload-stretch:/etc/trafficserver# sed -i 's/proxy.config.http.cache.required_headers INT 2/proxy.config.http.cache.required_headers INT 1/' records.config
root@traffic-upload-stretch:/etc/trafficserver# traffic_ctl config reload
root@traffic-upload-stretch:/etc/trafficserver# traffic_ctl config get proxy.config.http.cache.required_headers
proxy.config.http.cache.required_headers: 1
root@traffic-upload-stretch:/etc/trafficserver# ls -l records.config
-rw-r--r-- 1 trafficserver trafficserver 3119 May 13 15:28 records.config