format code with gofumpt

Doing a one-pass of formatting the code with gofumpt, which provides a
superset of gofmt.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

secretservice/secretservice_linux.go

@@ -7,6 +7,7 @@ package secretservice
 #include <stdlib.h>
 */
 import "C"
+
 import (
 	"errors"
 	"unsafe"

secretservice/secretservice_linux_test.go

@@ -28,7 +28,6 @@ func TestSecretServiceHelper(t *testing.T) {
 	// remove them as they probably come from a previous failed test
 	for k, v := range oldAuths {
 		if strings.Compare(k, creds.ServerURL) == 0 && strings.Compare(v, creds.Username) == 0 {
-
 			if err := helper.Delete(creds.ServerURL); err != nil {
 				t.Fatal(err)
 			}