bug #3788 Fix link for StopwatchEvent class (rpg600)

This PR was merged into the 2.3 branch.

Discussion
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Fix link for StopwatchEvent class

Was in wrong branch... it's ok now.

Commits
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db89cc4 Fix link for StopwatchEvent class

components/stopwatch.rst

@@ -35,7 +35,7 @@ microtime by yourself. Instead, use the simple
     // ... some code goes here
     $event = $stopwatch->stop('eventName');
 
-The :class:`Symfony\\Component\\Stopwatch\StopwatchEvent` object can be retrieved
+The :class:`Symfony\\Component\\Stopwatch\\StopwatchEvent` object can be retrieved
 from the  :method:`Symfony\\Component\\Stopwatch\\Stopwatch::start`, 
 :method:`Symfony\\Component\\Stopwatch\\Stopwatch::stop` and
 :method:`Symfony\\Component\\Stopwatch\\Stopwatch::lap` methods.