Update go-autorest library to v7.2.3

Godeps/Godeps.json

@@ -63,28 +63,28 @@
 		},
 		{
 			"ImportPath": "github.com/Azure/go-autorest/autorest",
-			"Comment": "v7.2.2-8-ge0c77ec",
-			"Rev": "e0c77ecbe74311e03f2a629834d2110f031f1453"
+			"Comment": "v7.2.3",
+			"Rev": "d7c034a8af24eda120dd6460bfcd6d9ed14e43ca"
 		},
 		{
 			"ImportPath": "github.com/Azure/go-autorest/autorest/azure",
-			"Comment": "v7.2.2-8-ge0c77ec",
-			"Rev": "e0c77ecbe74311e03f2a629834d2110f031f1453"
+			"Comment": "v7.2.3",
+			"Rev": "d7c034a8af24eda120dd6460bfcd6d9ed14e43ca"
 		},
 		{
 			"ImportPath": "github.com/Azure/go-autorest/autorest/date",
-			"Comment": "v7.2.2-8-ge0c77ec",
-			"Rev": "e0c77ecbe74311e03f2a629834d2110f031f1453"
+			"Comment": "v7.2.3",
+			"Rev": "d7c034a8af24eda120dd6460bfcd6d9ed14e43ca"
 		},
 		{
 			"ImportPath": "github.com/Azure/go-autorest/autorest/to",
-			"Comment": "v7.2.2-8-ge0c77ec",
-			"Rev": "e0c77ecbe74311e03f2a629834d2110f031f1453"
+			"Comment": "v7.2.3",
+			"Rev": "d7c034a8af24eda120dd6460bfcd6d9ed14e43ca"
 		},
 		{
 			"ImportPath": "github.com/Azure/go-autorest/autorest/validation",
-			"Comment": "v7.2.2-8-ge0c77ec",
-			"Rev": "e0c77ecbe74311e03f2a629834d2110f031f1453"
+			"Comment": "v7.2.3",
+			"Rev": "d7c034a8af24eda120dd6460bfcd6d9ed14e43ca"
 		},
 		{
 			"ImportPath": "github.com/MakeNowJust/heredoc",

vendor/github.com/Azure/go-autorest/autorest/azure/token.go

@@ -302,7 +302,7 @@ func (spt *ServicePrincipalToken) refreshInternal(resource string) error {
 
 	var newToken Token
 	err = autorest.Respond(resp,
-		autorest.WithErrorUnlessOK(),
+		autorest.WithErrorUnlessStatusCode(http.StatusOK),
 		autorest.ByUnmarshallingJSON(&newToken),
 		autorest.ByClosing())
 	if err != nil {

vendor/github.com/Azure/go-autorest/autorest/error.go

@@ -28,6 +28,9 @@ type DetailedError struct {
 
 	// Message is the error message.
 	Message string
+
+	// Service Error is the response body of failed API in bytes
+	ServiceError []byte
 }
 
 // NewError creates a new Error conforming object from the passed packageType, method, and

vendor/github.com/Azure/go-autorest/autorest/responder.go

@@ -165,17 +165,24 @@ func ByUnmarshallingXML(v interface{}) RespondDecorator {
 }
 
 // WithErrorUnlessStatusCode returns a RespondDecorator that emits an error unless the response
-// StatusCode is among the set passed. Since these are artificial errors, the response body
-// may still require closing.
+// StatusCode is among the set passed. On error, response body is fully read into a buffer and
+// presented in the returned error, as well as in the response body.
 func WithErrorUnlessStatusCode(codes ...int) RespondDecorator {
 	return func(r Responder) Responder {
 		return ResponderFunc(func(resp *http.Response) error {
 			err := r.Respond(resp)
 			if err == nil && !ResponseHasStatusCode(resp, codes...) {
-				err = NewErrorWithResponse("autorest", "WithErrorUnlessStatusCode", resp, "%v %v failed with %s",
+				derr := NewErrorWithResponse("autorest", "WithErrorUnlessStatusCode", resp, "%v %v failed with %s",
 					resp.Request.Method,
 					resp.Request.URL,
 					resp.Status)
+				if resp.Body != nil {
+					defer resp.Body.Close()
+					b, _ := ioutil.ReadAll(resp.Body)
+					derr.ServiceError = b
+					resp.Body = ioutil.NopCloser(bytes.NewReader(b))
+				}
+				err = derr
 			}
 			return err
 		})

vendor/github.com/Azure/go-autorest/autorest/sender.go

@@ -73,7 +73,7 @@ func SendWithSender(s Sender, r *http.Request, decorators ...SendDecorator) (*ht
 func AfterDelay(d time.Duration) SendDecorator {
 	return func(s Sender) Sender {
 		return SenderFunc(func(r *http.Request) (*http.Response, error) {
-			if !DelayForBackoff(d, 1, r.Cancel) {
+			if !DelayForBackoff(d, 0, r.Cancel) {
 				return nil, fmt.Errorf("autorest: AfterDelay canceled before full delay")
 			}
 			return s.Do(r)
@@ -257,6 +257,8 @@ func WithLogging(logger *log.Logger) SendDecorator {
 // passed attempt (i.e., an exponential backoff delay). Backoff duration is in seconds and can set
 // to zero for no delay. The delay may be canceled by closing the passed channel. If terminated early,
 // returns false.
+// Note: Passing attempt 1 will result in doubling "backoff" duration. Treat this as a zero-based attempt
+// count.
 func DelayForBackoff(backoff time.Duration, attempt int, cancel <-chan struct{}) bool {
 	select {
 	case <-time.After(time.Duration(backoff.Seconds()*math.Pow(2, float64(attempt))) * time.Second):