Doc: Restore link to the Ok status value

Change-Id: I630caa2f76ce4fd4476b9027513b55f257d90d4b
Reviewed-by: Thiago Macieira <[email protected]>

Author: David Boddie

src/corelib/serialization/qtextstream.cpp

@@ -2558,7 +2558,7 @@ QTextStream &QTextStream::operator<<(const void *ptr)
     \fn QTextStream::operator bool() const
     \since 6.10
 
-    Returns whether this stream has no errors (status() returns \c{Status::OK}).
+    Returns whether this stream has no errors (status() returns \l{Ok}).
 */
 
 namespace Qt {