lib/godoc/example.html: htmlify the play code

Fixes #4539.

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/6942043

diff --git a/lib/godoc/example.html b/lib/godoc/example.html
index a6df54be6f36acf1f161d5a30c5ab2a405459897..cda2a8491e6c1cd551826a4dab2a2030931bd145 100644 (file)
--- a/lib/godoc/example.html
+++ b/lib/godoc/example.html
@@ -8,7 +8,7 @@
                {{$output := .Output}}
                {{with .Play}}
                        <div class="play">
-                               <div class="input"><textarea class="code">{{.}}</textarea></div>
+                               <div class="input"><textarea class="code">{{html .}}</textarea></div>
                                <div class="output"><pre>{{html $output}}</pre></div>
                                <div class="buttons">
                                        <a class="run" title="Run this code [shift-enter]">Run</a>