Fixed WTForms example.

docs/patterns/wtforms.rst

@@ -22,9 +22,9 @@ This is an example form for a typical registration page::
     class RegistrationForm(Form):
         username = TextField('Username', [validators.Length(min=4, max=25)])
         email = TextField('Email Address', [validators.Length(min=6, max=35)])
-        password = PasswordField('New Password', [Required(),
-            EqualTo('confirm', message='Passwords must match')])
-        confirm = PasswordField('Repeat Password')
+        password = PasswordField('New Password', [validators.Required()])
+        confirm = PasswordField('Repeat Password', [validators.EqualTo(
+            'confirm', message='Passwords must match')])
         accept_tos = BooleanField('I accept the TOS', [validators.Required()])
 
 In the View