Fix memleak in serialize

ext/standard/var.c

@@ -598,6 +598,7 @@ static void php_var_serialize_class(smart_str *buf, zval **struc, zval *retval_p
 							php_var_serialize_intern(buf, d, var_hash TSRMLS_CC);
 							break;
 						}
+						efree(priv_name);
 						zend_mangle_property_name(&prot_name, &prop_name_length,  "*", 1, 
 									Z_STRVAL_PP(name), Z_STRLEN_PP(name) + 1, ce->type & ZEND_INTERNAL_CLASS);
 						if (zend_hash_find(Z_OBJPROP_PP(struc), prot_name, prop_name_length, (void *) &d) == SUCCESS) {
@@ -606,12 +607,10 @@ static void php_var_serialize_class(smart_str *buf, zval **struc, zval *retval_p
 							php_var_serialize_intern(buf, d, var_hash TSRMLS_CC);
 							break;
 						}
+						efree(prot_name);
 						php_error_docref(NULL TSRMLS_CC, E_NOTICE, "\"%s\" returned as member variable from __sleep() but does not exist", Z_STRVAL_PP(name));
 						php_var_serialize_string(buf, Z_STRVAL_PP(name), Z_STRLEN_PP(name));
 						php_var_serialize_intern(buf, &nvalp, var_hash TSRMLS_CC);
-						
-						efree(prot_name);
-						efree(priv_name);
 					} while (0);
 				} else {
 					php_var_serialize_string(buf, Z_STRVAL_PP(name), Z_STRLEN_PP(name));