doc: update go1.8 release notes to say NamedArg not NamedParam

Fixes #18135

Change-Id: I54ef9d6fc804d0fb77b729a04367a138e40f9ddf
Reviewed-on: https://go-review.googlesource.com/33766
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

doc/go1.8.html

@@ -850,9 +850,9 @@ <h3 id="minor_library_changes">Minor changes to the library</h3>
 	  should continue to be used after it advances to the next result set.
     </p>
 	<p>
-	  <a href="/pkg/database/sql/#NamedParam"><code>NamedParam</code></a> may be used
-	  as query arguments. The new function <a href="/pkg/database/sql/#Param"><code>Param</code></a>
-	  helps create a <a href="/pkg/database/sql/#NamedParam"><code>NamedParam</code></a>
+	  <a href="/pkg/database/sql/#NamedArg"><code>NamedArg</code></a> may be used
+	  as query arguments. The new function <a href="/pkg/database/sql/#Named"><code>Named</code></a>
+	  helps create a <a href="/pkg/database/sql/#NamedArg"><code>NamedArg</code></a>
 	  more succinctly.
 	<p>
           If a driver supports the new