fixup naming

command/agent/command.go

@@ -778,7 +778,7 @@ WAIT:
 	select {
 	case s := <-signalCh:
 		sig = s
-	case <-winsvc.Shutdown_Channel():
+	case <-winsvc.ShutdownChannel():
 		sig = os.Interrupt
 	case <-c.ShutdownCh:
 		sig = os.Interrupt

helper/winsvc/service.go

@@ -2,6 +2,8 @@ package winsvc
 
 var chanGraceExit = make(chan int)
 
-func Shutdown_Channel() <-chan int {
+// ShutdownChannel returns a channel that sends a message that a shutdown
+// signal has been received for the service.
+func ShutdownChannel() <-chan int {
 	return chanGraceExit
 }

helper/winsvc/service_windows.go

@@ -17,11 +17,12 @@ func init() {
 	if interactive {
 		return
 	}
-	go func() {
-		_ = wsvc.Run("", serviceWindows{})
-	}()
+	go wsvc.Run("", serviceWindows{})()
 }
 
+// Execute implements the Windows service Handler type. It will be
+// called at the start of the service, and the service will exit
+// once Execute completes.
 func (serviceWindows) Execute(args []string, r <-chan wsvc.ChangeRequest, s chan<- wsvc.Status) (svcSpecificEC bool, exitCode uint32) {
 	const accCommands = wsvc.AcceptStop | wsvc.AcceptShutdown
 	s <- wsvc.Status{State: wsvc.Running, Accepts: accCommands}