Un-XFAIL fail-arg

src/test/run-fail/fail-arg.rs

@@ -1,11 +1,9 @@
 // xfail-stage0
-// xfail-stage1
-// xfail-stage2
-// error-pattern:explicit failure
+// error-pattern:woe
 fn f(int a) {
   log a;
 }
 
 fn main() { 
-  f(fail);
+  f(fail "woe");
 }