Checking in vendor folder for ease of using go get.

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

@@ -0,0 +1,27 @@
+// Copyright 2016 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 currency_test
+
+import (
+	"fmt"
+	"time"
+
+	"golang.org/x/text/currency"
+)
+
+func ExampleQuery() {
+	t1799, _ := time.Parse("2006-01-02", "1799-01-01")
+	for it := currency.Query(currency.Date(t1799)); it.Next(); {
+		from := ""
+		if t, ok := it.From(); ok {
+			from = t.Format("2006-01-01")
+		}
+		fmt.Printf("%v is used in %v since: %v\n", it.Unit(), it.Region(), from)
+	}
+	// Output:
+	// GBP is used in GB since: 1694-07-07
+	// GIP is used in GI since: 1713-01-01
+	// USD is used in US since: 1792-01-01
+}