Immediate call_out takes 2ms

[Tobias S. Josefowitz @ Pike developers forum]

>       Hi.
>       In Pike 7.8 calling call_out takes 0.002 ms.  In Ubuntu's Pike v8.0  
>release 498 and in Opera's v8.0 release 610 it takes 2ms.  Test program:

Seems to be a relative direct consequence of
7e8de5246b3012b055756293f2332494216646fd. /me scratches head.