fix fmt and vetting issues

pkg/container/mocks/FilterableContainer.go

@@ -78,4 +78,3 @@ func (_m *FilterableContainer) Scope() (string, bool) {
 
 	return r0, r1
 }
-

pkg/notifications/shoutrrr.go

@@ -4,8 +4,8 @@ import (
 	"bytes"
 	"fmt"
 	"github.com/containrrr/shoutrrr/pkg/types"
-	"text/template"
 	"strings"
+	"text/template"
 
 	"github.com/containrrr/shoutrrr"
 	t "github.com/containrrr/watchtower/pkg/types"

pkg/notifications/shoutrrr_test.go

@@ -75,7 +75,6 @@ func TestShoutrrrStringFunctions(t *testing.T) {
 	require.Equal(t, "INFO: foo bar Foo Bar\n", s)
 }
 
-
 func TestShoutrrrInvalidTemplateUsesTemplate(t *testing.T) {
 	cmd := new(cobra.Command)