Update go dependencies

vendor/github.com/ugorji/go/codec/helper_unsafe.go

@@ -1,4 +1,4 @@
-//+build unsafe
+// +build unsafe
 
 // Copyright (c) 2012-2015 Ugorji Nwoke. All rights reserved.
 // Use of this source code is governed by a MIT license found in the LICENSE file.
@@ -16,7 +16,7 @@ type unsafeString struct {
 	Len  int
 }
 
-type unsafeBytes struct {
+type unsafeSlice struct {
 	Data uintptr
 	Len  int
 	Cap  int
@@ -29,8 +29,10 @@ func stringView(v []byte) string {
 	if len(v) == 0 {
 		return ""
 	}
-	x := unsafeString{uintptr(unsafe.Pointer(&v[0])), len(v)}
-	return *(*string)(unsafe.Pointer(&x))
+
+	bx := (*unsafeSlice)(unsafe.Pointer(&v))
+	sx := unsafeString{bx.Data, bx.Len}
+	return *(*string)(unsafe.Pointer(&sx))
 }
 
 // bytesView returns a view of the string as a []byte.
@@ -40,6 +42,8 @@ func bytesView(v string) []byte {
 	if len(v) == 0 {
 		return zeroByteSlice
 	}
-	x := unsafeBytes{uintptr(unsafe.Pointer(&v)), len(v), len(v)}
-	return *(*[]byte)(unsafe.Pointer(&x))
+
+	sx := (*unsafeString)(unsafe.Pointer(&v))
+	bx := unsafeSlice{sx.Data, sx.Len, sx.Len}
+	return *(*[]byte)(unsafe.Pointer(&bx))
 }