Replace klog with non-exiting fork

Signed-off-by: Brad Davidson <brad.davidson@rancher.com>

main.go

@@ -7,6 +7,8 @@
 package main
 
 import (
+	"context"
+	"errors"
 	"os"
 
 	"github.com/rancher/k3s/pkg/cli/agent"
@@ -36,7 +38,7 @@ func main() {
 		),
 	}
 
-	if err := app.Run(configfilearg.MustParse(os.Args)); err != nil {
+	if err := app.Run(configfilearg.MustParse(os.Args)); err != nil && !errors.Is(err, context.Canceled) {
 		logrus.Fatal(err)
 	}
 }