3 files changed, 24 insertions, 5 deletions
diff --git a/vendor/golang.org/x/time/README b/vendor/golang.org/x/time/README
deleted file mode 100644
index 144e347b4..000000000
--- a/vendor/golang.org/x/time/README
+++ /dev/null
@@ -1 +0,0 @@
-This repository provides supplementary Go time packages.
diff --git a/vendor/golang.org/x/time/README.md b/vendor/golang.org/x/time/README.md
new file mode 100644
index 000000000..ce9becdde
--- /dev/null
+++ b/vendor/golang.org/x/time/README.md
@@ -0,0 +1,17 @@
+# Go Time
+
+This repository provides supplementary Go time packages.
+
+## Download/Install
+
+The easiest way to install is to run `go get -u golang.org/x/time`. You can
+also manually git clone the repository to `$GOPATH/src/golang.org/x/time`.
+
+## Report Issues / Send Patches
+
+This repository uses Gerrit for code changes. To learn how to submit changes to
+this repository, see https://golang.org/doc/contribute.html.
+
+The main issue tracker for the time repository is located at
+https://github.com/golang/go/issues. Prefix your issue with "x/time:" in the
+subject line, so it is easy to find.
diff --git a/vendor/golang.org/x/time/rate/rate.go b/vendor/golang.org/x/time/rate/rate.go
index 938feaffe..ae93e2471 100644
--- a/vendor/golang.org/x/time/rate/rate.go
+++ b/vendor/golang.org/x/time/rate/rate.go
@@ -6,12 +6,11 @@
 package rate
 
 import (
+	"context"
 	"fmt"
 	"math"
 	"sync"
 	"time"
-
-	"golang.org/x/net/context"
 )
 
 // Limit defines the maximum frequency of some events.
@@ -244,8 +243,12 @@ func (lim *Limiter) WaitN(ctx context.Context, n int) (err error) {
 	if !r.ok {
 		return fmt.Errorf("rate: Wait(n=%d) would exceed context deadline", n)
 	}
-	// Wait
-	t := time.NewTimer(r.DelayFrom(now))
+	// Wait if necessary
+	delay := r.DelayFrom(now)
+	if delay == 0 {
+		return nil
+	}
+	t := time.NewTimer(delay)
 	defer t.Stop()
 	select {
 	case <-t.C: