Fix test expectation

Author: TimWolla

Zend/tests/inheritance/gh15907.phpt

@@ -16,6 +16,6 @@ class C implements Serializable {
 --EXPECTF--
 Fatal error: Uncaught Exception: C implements the Serializable interface, which is deprecated. Implement __serialize() and __unserialize() instead (or in addition, if support for old PHP versions is necessary) in %s:%d
 Stack trace:
-#0 %s(%d): {closure:%s:%d}(8192, 'C implements th...', '/home/arnaud/de...', 7)
+#0 %s(%d): {closure:%s:%d}(8192, 'C implements th...', %s, %d)
 #1 {main}
   thrown in %s on line %d