Improve user agents

cmds/portmaster-core/main.go

@@ -2,12 +2,15 @@
 package main
 
 import (
+	"fmt"
 	"os"
+	"runtime"
 
 	"github.com/safing/portbase/info"
 	"github.com/safing/portbase/log"
 	"github.com/safing/portbase/metrics"
 	"github.com/safing/portbase/run"
+	"github.com/safing/portmaster/updates"
 	"github.com/safing/spn/conf"
 
 	// Include packages here.
@@ -29,6 +32,9 @@ func main() {
 	// Configure metrics.
 	_ = metrics.SetNamespace("portmaster")
 
+	// Configure user agent.
+	updates.UserAgent = fmt.Sprintf("Portmaster Core (%s %s)", runtime.GOOS, runtime.GOARCH)
+
 	// enable SPN client mode
 	conf.EnableClient(true)