use set_close_on_exec for fds created by Lwt_log
use set_close_on_exec for fds created by Lwt_log

Ignore-this: 15d7d80ed9e57dc07bee293b0556263b

darcs-hash:20100529210534-c41ad-47d9b51ee2dfee01dec2754bc555eb6cbc57c0a7

mfp/lwt,c-cube/lwt,rgrinberg/lwt,mirage/lwt,mirage/lwt,mfp/lwt,fdopen/lwt,rgrinberg/lwt,gfxmonk/lwt,ocsigen/lwt,rgrinberg/lwt,rneswold/lwt,rneswold/lwt,c-cube/lwt,gfxmonk/lwt,janestreet/lwt-async,ocsigen/lwt,janestreet/lwt-async,fdopen/lwt,c-cube/lwt,rneswold/lwt,rgrinberg/lwt,ocsigen/lwt