rogpeppe: new command

This will be very useful.

Change-Id: Ib084b7fdee7cab2c27bfc45392f463bb5d703732
Reviewed-on: https://go-review.googlesource.com/48788
Reviewed-by: roger peppe <rogpeppe@gmail.com>
diff --git a/rogpeppe/main.go b/rogpeppe/main.go
new file mode 100644
index 0000000..d3dc1cf
--- /dev/null
+++ b/rogpeppe/main.go
@@ -0,0 +1,13 @@
+package main
+
+import (
+	"io"
+	"log"
+	"os"
+)
+
+func main() {
+	if _, err := io.Copy(os.Stdout, os.Stdin); err != nil {
+		log.Fatal(err)
+	}
+}