doc/go1.19: fix strconv.Quote pkg link

For #51400.

Change-Id: I122b3a58e5fbaaa8ceb5b013e8e392f4bcbbd2e5
Reviewed-on: https://go-review.googlesource.com/c/go/+/408495
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>

Author: zchee

doc/go1.19.html

@@ -355,7 +355,7 @@ <h3 id="minor_library_changes">Minor changes to the library</h3>
 <dl id="strconv"><dt><a href="/pkg/strconv/">strconv</a></dt>
   <dd>
     <p><!-- CL 397255 -->
-      <a href="/pkg/strconv/#strconv.Quote"><code>strconv.Quote</code></a>
+      <a href="/pkg/strconv/#Quote"><code>Quote</code></a>
       and related functions now quote the rune 007F as <code>\x7f</code>,
       not <code>\u007f</code>.
     </p>