on some platforms (OpenBSD) this changes the exposed argv in tools using
the kvm_* interface, such as ps and pgrep.

This prevents accessing to a potentially out-of-bounds memory section.

Signed-off-by: Lucas Gabriel Vuotto <l.vuotto92@gmail.com>
Signed-off-by: Christoph Lohmann <20h@r-36.net>

ARGUM isn't used and ARGNUMF uses estrtol() that isn't defined anywhere.
Those were probably copied from sbase arg.h.

Signed-off-by: Christoph Lohmann <20h@r-36.net>

sbase did some interesting modifications to arg.h (basically it
was fixed an incorrect use of the _ namespace), and this commit
take this last version for st.