[DOCUMENTATION]: fix compilation errors

git-svn-id: http://framework.zend.com/svn/framework/standard/trunk@21479 44c647ce-9c0f-0410-b52a-842ac1e357ba

documentation/manual/en/module_specs/Zend_Validate-StringLength.xml

@@ -159,8 +159,8 @@ $validator->isValid("Testing"); // returns true
 
         <para>
             Strings are always using a encoding. Even when you don't set the encoding explicit,
-            <acromyn>PHP</acronym> uses one. When your application is using a different encoding
-            than <acromyn>PHP</acronym> itself then you should set an encoding yourself.
+            <acronym>PHP</acronym> uses one. When your application is using a different encoding
+            than <acronym>PHP</acronym> itself then you should set an encoding yourself.
         </para>
 
         <para>