Update dependencies

Among others, this updates minio-go, so that the new "eu-west-3" zone
for AWS is supported.

vendor/golang.org/x/text/encoding/example_test.go

@@ -0,0 +1,42 @@
+// Copyright 2013 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package encoding_test
+
+import (
+	"fmt"
+	"io"
+	"os"
+	"strings"
+
+	"golang.org/x/text/encoding"
+	"golang.org/x/text/encoding/charmap"
+	"golang.org/x/text/encoding/unicode"
+	"golang.org/x/text/transform"
+)
+
+func ExampleDecodeWindows1252() {
+	sr := strings.NewReader("Gar\xe7on !")
+	tr := charmap.Windows1252.NewDecoder().Reader(sr)
+	io.Copy(os.Stdout, tr)
+	// Output: Garçon !
+}
+
+func ExampleUTF8Validator() {
+	for i := 0; i < 2; i++ {
+		var transformer transform.Transformer
+		transformer = unicode.UTF16(unicode.BigEndian, unicode.IgnoreBOM).NewEncoder()
+		if i == 1 {
+			transformer = transform.Chain(encoding.UTF8Validator, transformer)
+		}
+		dst := make([]byte, 256)
+		src := []byte("abc\xffxyz") // src is invalid UTF-8.
+		nDst, nSrc, err := transformer.Transform(dst, src, true)
+		fmt.Printf("i=%d: produced %q, consumed %q, error %v\n",
+			i, dst[:nDst], src[:nSrc], err)
+	}
+	// Output:
+	// i=0: produced "\x00a\x00b\x00c\xff\xfd\x00x\x00y\x00z", consumed "abc\xffxyz", error <nil>
+	// i=1: produced "\x00a\x00b\x00c", consumed "abc", error encoding: invalid UTF-8
+}