Update bulidbucket client

buildbucket/client/cmd/buildbucket/get.go

Index: buildbucket/client/cmd/buildbucket/get.go
diff --git a/buildbucket/client/cmd/buildbucket/get.go b/buildbucket/client/cmd/buildbucket/get.go
new file mode 100644
index 0000000000000000000000000000000000000000..0d6b1b34e06d3d22120cb10177a8604eaf8fd4c1
--- /dev/null
+++ b/buildbucket/client/cmd/buildbucket/get.go
@@ -0,0 +1,39 @@
+// Copyright 2016 The LUCI Authors. All rights reserved.
+// Use of this source code is governed under the Apache License, Version 2.0
+// that can be found in the LICENSE file.
+
+package main
+
+import (
+	"fmt"
+
+	"github.com/maruel/subcommands"
+
+	"github.com/luci/luci-go/common/cli"
+)
+
+var cmdGet = &subcommands.Command{
+	UsageLine: `get [flags] <build id>`,
+	ShortDesc: "get details about a build",
+	LongDesc:  "Get details about a build.",
+	CommandRun: func() subcommands.CommandRun {
+		c := &getRun{}
+		c.SetDefaultFlags()
+		return c
+	},
+}
+
+type getRun struct {
+	baseCommandRun
+	buildIDArg
+}
+
+func (r *getRun) Run(a subcommands.Application, args []string) int {
+	ctx := cli.GetContext(a, r)
+
+	if err := r.parseArgs(args); err != nil {
+		return r.done(ctx, err)
+	}
+
+	return r.callAndDone(ctx, "GET", fmt.Sprintf("builds/%d", r.buildID), nil)
+}