Minor fix

javiereguiluz · web-flow · commit 52c0a94eb4d7 · 2017-04-08T11:11:20.000+02:00
diff --git a/reference/forms/types/collection.rst b/reference/forms/types/collection.rst
@@ -275,7 +275,7 @@ the empty values will be kept.
 
 .. caution::
 
-    The ``delete_empty`` option only removes items when the normalized  value is
+    The ``delete_empty`` option only removes items when the normalized value is
     ``null``. If your `type`_ is a compound form type, you must either set the
     ``required`` option to ``false`` or set the ``empty_data`` option to ``null``.
     Both of these options can be set inside `options`_. See
