doc/install: fix FreeBSD/Linux install command

R=adg, golang-dev, go.peter.90, rsc
CC=golang-dev
https://golang.org/cl/5700062

diff --git a/doc/install.html b/doc/install.html
index 95bfaa769480dfd429c0d0b829de4cc8e3120047..2bd36782b9e02a5e39b150a687a9dc59bbdf5024 100644 (file)
--- a/doc/install.html
+++ b/doc/install.html
@@ -75,7 +75,7 @@ Extract the archive into <code>/usr/local</code>, creating a Go tree in
 </p>
 
 <pre>
-tar -C /usr/local go.release.go1.tar.gz
+tar -C /usr/local -xzf go.release.go1.tar.gz
 </pre>
 
 <p>