Re: [PATCH] run-command: Redirect stderr to a pipe before redirecting stdout to stderr

> With this patch, in the 'start_command' function after forking
> we now take care of stderr in the child process before stdout.
> 
> This way if 'start_command' is called with a 'child_process'
> argument like this:
> 
> 	.err = -1;
> 	.stdout_to_stderr = 1;
> 
> then stderr will be redirected to a pipe before stdout is
> redirected to stderr. So we can now get the process' stdout
> from the pipe (as well as its stderr).
> 
> Earlier such a call would have redirected stdout to stderr
> before stderr was itself redirected, and therefore stdout
> would not have followed stderr, which would not have been
> very useful anyway.
> 
> Update documentation in 'api-run-command.txt' accordingly.
> 
> Signed-off-by: Christian Couder <chriscool@tuxfamily.org>