close on exit

main.go

@@ -8,6 +8,7 @@ import (
 	"net/http/pprof"
 	"os"
 	"os/signal"
+	"strings"
 	"syscall"
 	"time"
 
@@ -208,7 +209,7 @@ func main() {
 						break
 					}
 					str := string(buf[:n])
-					if str == "exit" {
+					if strings.HasPrefix(str, "exit") {
 						break
 					}
 					log.Println("Echoing", str)