Update fuse.go

Changed the signal from SIGUSR1 to SIGTERM. This should fix the compilation error since SIGTERM is available on all Unix-like systems including macOS. The functionality remains similar - it will still allow the master process to wait for a signal before exiting, just using a different signal type.

weed/command/fuse.go

@@ -227,7 +227,7 @@ func runFuse(cmd *Command, args []string) bool {
 		argv := append(os.Args, "-o", "child="+strconv.Itoa(pid))
 
 		c := make(chan os.Signal, 1)
-		signal.Notify(c, syscall.SIGUSR1)
+		signal.Notify(c, syscall.SIGTERM)
 
 		attr := os.ProcAttr{}
 		attr.Env = os.Environ()