Patch for asynch sendmail vulnerability on OPENBSD_3_6 stable

[Michael Flanagan <michael_flanagan_(_at_)_telus_(_dot_)_net>]

I found myself needing up apply the recent patch for sendmail against  
an aging 3.6 stable box.

I took the sendmail patch for the 3.7 stable branch and applied it  
against 3.6 stable. It applied cleanly with the exception of a half  
dozen hunks in a couple of files. I merged those by hand and am up  
and running with a rebuilt sendmail.

In case this saves anyone a little time, I've created a diff of what  
I'm running against 3.6 stable. It applies cleanly. You can find it  
here:

http://pokernut.net/wp-content/OPENBSD36_sendmail.patch

Michael