Style: format code by gofumpt (#761)

common/crypto/auth.go

@@ -290,7 +290,6 @@ func (w *AuthenticationWriter) writeStream(mb buf.MultiBuffer) error {
 		mb = nb
 
 		eb, err := w.seal(rawBytes[:nBytes])
-
 		if err != nil {
 			buf.ReleaseMulti(mb2Write)
 			return err

common/crypto/chacha20_test.go

@@ -18,7 +18,7 @@ func mustDecodeHex(s string) []byte {
 }
 
 func TestChaCha20Stream(t *testing.T) {
-	var cases = []struct {
+	cases := []struct {
 		key    []byte
 		iv     []byte
 		output []byte

common/crypto/internal/chacha_core.generated.go

@@ -3,7 +3,7 @@ package internal
 import "encoding/binary"
 
 func ChaCha20Block(s *[16]uint32, out []byte, rounds int) {
-	var x0, x1, x2, x3, x4, x5, x6, x7, x8, x9, x10, x11, x12, x13, x14, x15 = s[0], s[1], s[2], s[3], s[4], s[5], s[6], s[7], s[8], s[9], s[10], s[11], s[12], s[13], s[14], s[15]
+	x0, x1, x2, x3, x4, x5, x6, x7, x8, x9, x10, x11, x12, x13, x14, x15 := s[0], s[1], s[2], s[3], s[4], s[5], s[6], s[7], s[8], s[9], s[10], s[11], s[12], s[13], s[14], s[15]
 	for i := 0; i < rounds; i += 2 {
 		var x uint32
 

common/crypto/internal/chacha_core_gen.go

@@ -56,7 +56,7 @@ func ChaCha20Block(s *[16]uint32, out []byte, rounds int) {
 }
 
 func main() {
-	file, err := os.OpenFile("chacha_core.generated.go", os.O_WRONLY|os.O_TRUNC|os.O_CREATE, 0644)
+	file, err := os.OpenFile("chacha_core.generated.go", os.O_WRONLY|os.O_TRUNC|os.O_CREATE, 0o644)
 	if err != nil {
 		log.Fatalf("Failed to generate chacha_core.go: %v", err)
 	}

common/crypto/io.go

@@ -27,9 +27,7 @@ func (r *CryptionReader) Read(data []byte) (int, error) {
 	return nBytes, err
 }
 
-var (
-	_ buf.Writer = (*CryptionWriter)(nil)
-)
+var _ buf.Writer = (*CryptionWriter)(nil)
 
 type CryptionWriter struct {
 	stream    cipher.Stream