doc/go_spec: cap doesn't apply to maps
Fixes #4682.
R=golang-dev, adg, dave
CC=golang-dev
https://golang.org/cl/7094062
diff --git a/doc/go_spec.html b/doc/go_spec.html
index 239e69c..c93bb6c 100644
--- a/doc/go_spec.html
+++ b/doc/go_spec.html
@@ -1,6 +1,6 @@
<!--{
"Title": "The Go Programming Language Specification",
- "Subtitle": "Version of January 18, 2013",
+ "Subtitle": "Version of January 21, 2013",
"Path": "/ref/spec"
}-->
@@ -4922,7 +4922,8 @@
</pre>
<p>
-The length and capacity of a <code>nil</code> slice, map, or channel are 0.
+The length of a <code>nil</code> slice, map or channel is 0.
+The capacity of a <code>nil</code> slice and channel is 0.
</p>
<p>
