dl: add go1.17.4 and go1.16.11

Change-Id: Icbc4ef508fa3ca624d8725573284f94361148de1
Reviewed-on: https://go-review.googlesource.com/c/dl/+/368598
Trust: Michael Knyszek <mknyszek@google.com>
Trust: Dmitri Shuralyov <dmitshur@golang.org>
Run-TryBot: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
diff --git a/go1.16.11/main.go b/go1.16.11/main.go
new file mode 100644
index 0000000..7eea8a0
--- /dev/null
+++ b/go1.16.11/main.go
@@ -0,0 +1,24 @@
+// Copyright 2021 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.
+
+// The go1.16.11 command runs the go command from Go 1.16.11.
+//
+// To install, run:
+//
+//     $ go install golang.org/dl/go1.16.11@latest
+//     $ go1.16.11 download
+//
+// And then use the go1.16.11 command as if it were your normal go
+// command.
+//
+// See the release notes at https://golang.org/doc/devel/release.html#go1.16.minor
+//
+// File bugs at https://golang.org/issues/new
+package main
+
+import "golang.org/dl/internal/version"
+
+func main() {
+	version.Run("go1.16.11")
+}
diff --git a/go1.17.4/main.go b/go1.17.4/main.go
new file mode 100644
index 0000000..c95e9c4
--- /dev/null
+++ b/go1.17.4/main.go
@@ -0,0 +1,24 @@
+// Copyright 2021 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.
+
+// The go1.17.4 command runs the go command from Go 1.17.4.
+//
+// To install, run:
+//
+//     $ go install golang.org/dl/go1.17.4@latest
+//     $ go1.17.4 download
+//
+// And then use the go1.17.4 command as if it were your normal go
+// command.
+//
+// See the release notes at https://golang.org/doc/devel/release.html#go1.17.minor
+//
+// File bugs at https://golang.org/issues/new
+package main
+
+import "golang.org/dl/internal/version"
+
+func main() {
+	version.Run("go1.17.4")
+}