removed whitespaces in docs

doc/filters/abs.rst

@@ -6,9 +6,9 @@ The ``abs`` filter returns the absolute value.
 .. code-block:: jinja
 
     {# number = -5 #}
-    
+
     {{ number|abs }}
-    
+
     {# outputs 5 #}
 
 .. note::

doc/filters/url_encode.rst

@@ -14,7 +14,7 @@ or an array as query string:
 
     {{ "string with spaces"|url_encode(true) }}
     {# outputs "string%20with%20spaces" #}
-    
+
     {{ {'param': 'value', 'foo': 'bar'}|url_encode }}
     {# outputs "param=value&foo=bar" #}