Shorten message on search page

sphinx/themes/basic/search.html

@@ -27,10 +27,8 @@
   </p>
   </div>
   <p>
-    {% trans %}From here you can search these documents. Enter your search
-    words into the box below and click "search". Note that the search
-    function will automatically search for all of the words. Pages
-    containing fewer words won't appear in the result list.{% endtrans %}
+    {% trans %}Searching for multiple words only shows matches that contain
+    all words.{% endtrans %}
   </p>
   <form action="" method="get">
     <input type="text" name="q" aria-labelledby="search-documentation" value="" />