exiting silently.
Also make sure the master process waits until the client attaches when using
the -A and -c modes, so that the error message has a chance of being seen.
the clients until at least one write worked and no error (other than EAGAIN)
occurred when writing to any of the clients. This way, complete data loss can
be avoided since at least one client must get all of the data.
Also make sure that stdin/stdout/stderr point to /dev/null instead of just
closing them, to avoid confusion.
Ned T. Crigler