Update more tests.

Author: Crell

Zend/tests/bug31720.phpt

@@ -12,4 +12,4 @@ try {
 ?>
 --EXPECTF--
 Warning: Undefined variable $nonesuchvar in %s on line %d
-array_walk(): Argument #2 ($funcname) must be a valid callback, first array member is not a valid class name or object
+array_walk(): Argument #2 ($callback) must be a valid callback, first array member is not a valid class name or object

ext/spl/tests/arrayObject_asort_basic1.phpt

@@ -36,7 +36,7 @@ object(ArrayObject)#%d (1) {
     int(4)
   }
 }
-asort(): Argument #2 ($sort_flags) must be of type int, string given
+asort(): Argument #2 ($flags) must be of type int, string given
 object(ArrayObject)#%d (1) {
   ["storage":"ArrayObject":private]=>
   array(3) {

ext/spl/tests/arrayObject_ksort_basic1.phpt

@@ -35,7 +35,7 @@ object(ArrayObject)#%d (1) {
     int(3)
   }
 }
-ksort(): Argument #2 ($sort_flags) must be of type int, string given
+ksort(): Argument #2 ($flags) must be of type int, string given
 object(ArrayObject)#2 (1) {
   ["storage":"ArrayObject":private]=>
   array(4) {