RFA [PATCH] Implement 'catch syscall' for gdbserver

[Eli Zaretskii]

> From: Philippe Waroquiers <philippe.waroquiers@skynet.be>
> Date: Fri, 30 Aug 2013 17:26:28 +0200
> 
> This is the 2nd version of the patch implementing 'catch syscalls' for
> gdbserver.
> First version was sent in an RFC (no feedback yet, so here is a completed
> and tested RFA ready version).
> Tested (no regression) on linux amd64, native and gdbserver.
> Manually tested with a patched Valgrind gdbserver.

Thanks.  The documentation parts are OK, but please be sure to leave 2
spaces between sentences (some of them have only one in this
changeset).