Testers for linuxulator MFC needed

[Roman Divacky]

> Note: if nobody tests (I need all of the above mentioned tests), there
> will be no MFC.
> 
> And this is what is contained in the patch:
> ---snip---
> MFC: 
>  - kern_descrip.c rev 1.296, syscallsubr.h rev 1.41 by jhb:
>    Add a kern_close() so that the ABIs can close a file descriptor w/o
>    having to populate a close_args struct and change some of the places
>    that do.
>  - sync linuxulator (bugfixes + minor syscalls):
>    * mmap fixes
>    * fix memleaks
>    * add mprotect/iopl/lstat/ftruncate/statfs64/timer_*/mq_*
>    * more errno value mapping
>    * don't limit number of syscalls to 255 
>    * allow to exec libs
>    * ioctl TIOCGPTN
>    * handle more socket options 
>    * de-COMPAT_43-ify

do you plan to remove COMPAT_43 from GENERIC? also.. I think we extended rlimit as well

thnx for the work!