several one-line panic, race, and logic fixes (#7766)

cmd/platform/server.go

@@ -144,7 +144,7 @@ func runServer(configFileLocation string) {
 
 	// wait for kill signal before attempting to gracefully shutdown
 	// the running service
-	c := make(chan os.Signal)
+	c := make(chan os.Signal, 1)
 	signal.Notify(c, os.Interrupt, syscall.SIGINT, syscall.SIGTERM)
 	<-c