MINOR: Fixed default streams state dir location. (#5441)

Co-authored-by: Mickael Maison <mickael.maison@gmail.com>
Co-authored-by: Simon Clark <simonc6r@gmail.com>

Reviewers: Sriharsha Chintalapani <sriharsha@apache.org>

docs/streams/developer-guide/app-reset-tool.html

@@ -141,7 +141,7 @@
                 use either of these methods:</p>
             <ul class="simple">
                 <li>The API method <code class="docutils literal"><span class="pre">KafkaStreams#cleanUp()</span></code> in your application code.</li>
-                <li>Manually delete the corresponding local state directory (default location: <code class="docutils literal"><span class="pre">/var/lib/kafka-streams/&lt;application.id&gt;</span></code>). For more information, see <a href="../../../javadoc/org/apache/kafka/streams/StreamsConfig.html#STATE_DIR_CONFIG">Streams</a> javadocs.</li>
+                <li>Manually delete the corresponding local state directory (default location: <code class="docutils literal"><span class="pre">/tmp/kafka-streams/&lt;application.id&gt;</span></code>). For more information, see <a href="../../../javadoc/org/apache/kafka/streams/StreamsConfig.html#STATE_DIR_CONFIG">Streams</a> javadocs.</li>
             </ul>
 </div>
 </div>