ZF-4651: correct docs for addFilter/addValidator

- Patch by Christian Albrecht

git-svn-id: http://framework.zend.com/svn/framework/standard/trunk@21907 44c647ce-9c0f-0410-b52a-842ac1e357ba

documentation/manual/en/module_specs/Zend_Form-Elements.xml

@@ -232,8 +232,7 @@ $filtered = $element->getValue();
 
             <listitem>
                 <para>
-                    providing a filter name – either a short name or fully
-                    qualified class name
+                    providing a short filter name
                 </para>
             </listitem>
         </itemizedlist>
@@ -246,9 +245,6 @@ $filtered = $element->getValue();
 // Concrete filter instance:
 $element->addFilter(new Zend_Filter_Alnum());
 
-// Fully qualified class name:
-$element->addFilter('Zend_Filter_Alnum');
-
 // Short filter name:
 $element->addFilter('Alnum');
 $element->addFilter('alnum');
@@ -368,8 +364,7 @@ $unfiltered = $element->getUnfilteredValue();
 
             <listitem>
                 <para>
-                    providing a validator name – either a short name or fully
-                    qualified class name
+                    providing a short validator name
                 </para>
             </listitem>
         </itemizedlist>
@@ -382,9 +377,6 @@ $unfiltered = $element->getUnfilteredValue();
 // Concrete validator instance:
 $element->addValidator(new Zend_Validate_Alnum());
 
-// Fully qualified class name:
-$element->addValidator('Zend_Validate_Alnum');
-
 // Short validator name:
 $element->addValidator('Alnum');
 $element->addValidator('alnum');