A major addition to the tools is a <em>race detector</em>, a way to find
bugs in programs caused by problems like concurrent changes to the same variable.
This new facility is built into the <code>go</code> tool.
-To enable it, set the the <code>-race</code> flag when building or testing your program
+To enable it, set the <code>-race</code> flag when building or testing your program
(for instance, <code>go test -race</code>).
The race detector is documented in <a href="/doc/articles/race_detector.html">a separate article</a>.
</p>
<a href="/pkg/strings/#TrimPrefix"><code>TrimPrefix</code></a>
and
<a href="/pkg/strings/#TrimSuffix"><code>TrimSuffix</code></a>
-with self-evident properties, and the the new method
+with self-evident properties, and the new method
<a href="/pkg/strings/#Reader.WriteTo"><code>Reader.WriteTo</code></a> so the
<a href="/pkg/strings/#Reader"><code>Reader</code></a>
type now implements the