Strangeness in 842 Fix

[Hal Murray]

> I do know that the SO_* symbols are for the socket options and the SCM_*
> symbols are for the CMSG types, so I don't see how this could possibly be
>  correct.  Note the code immediately above it.

The OLD stuff is a mess.

I did it the way you expect, but that didn't work because 
SCM_TIMESTAMPNS_OLD didn't exist.

All the SCM symbols are setup useing the SO sysmbols.
  #define SCM_foo SO_foo
So I use the SO_ symbols.

The code works for the test case and still works on quite a few normal 
cases.


-- 
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