options: Do not hide variables from parent scope

options: Do not hide variables from parent scope

msglevel hides the function parameter of the same name,
which could lead to confusion. Use a unique name.

Change-Id: I9f9d0f0d5ab03f8cdfd7ba7200f2d56613cc586d
Signed-off-by: Frank Lichtenheld <frank@lichtenheld.com>
Acked-by: Lev Stipakov <lstipakov@gmail.com>
Message-Id: <d549c9b5e5d66624ef82f99206898ff8e43a5fb5-HTML@gerrit.openvpn.net>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg26902.html
Signed-off-by: Gert Doering <gert@greenie.muc.de>