dl: add go1.11.6 and go1.12.1

Change-Id: I5c86cbe1659e2c493636fc7be962e1b3db33cc69
Reviewed-on: https://go-review.googlesource.com/c/dl/+/167639
Reviewed-by: Andrew Bonventre <andybons@golang.org>
diff --git a/go1.11.6/main.go b/go1.11.6/main.go
new file mode 100644
index 0000000..abe21b3
--- /dev/null
+++ b/go1.11.6/main.go
@@ -0,0 +1,24 @@
+// Copyright 2019 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 go1.11.6 command runs the go command from Go 1.11.6.
+//
+// To install, run:
+//
+//     $ go get golang.org/dl/go1.11.6
+//     $ go1.11.6 download
+//
+// And then use the go1.11.6 command as if it were your normal go
+// command.
+//
+// See the release notes at https://golang.org/doc/devel/release.html#go1.11.minor
+//
+// File bugs at https://golang.org/issues/new
+package main
+
+import "golang.org/dl/internal/version"
+
+func main() {
+	version.Run("go1.11.6")
+}
diff --git a/go1.12.1/main.go b/go1.12.1/main.go
new file mode 100644
index 0000000..e1fba86
--- /dev/null
+++ b/go1.12.1/main.go
@@ -0,0 +1,24 @@
+// Copyright 2019 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 go1.12.1 command runs the go command from Go 1.12.1.
+//
+// To install, run:
+//
+//     $ go get golang.org/dl/go1.12.1
+//     $ go1.12.1 download
+//
+// And then use the go1.12.1 command as if it were your normal go
+// command.
+//
+// See the release notes at https://golang.org/doc/devel/release.html#go1.12.minor
+//
+// File bugs at https://golang.org/issues/new
+package main
+
+import "golang.org/dl/internal/version"
+
+func main() {
+	version.Run("go1.12.1")
+}