init.c: refine functions names and description

init.c: refine functions names and description

This patch provides better naming and description
for functions which deal with backup/restore NCP-negotiable
options.

Signed-off-by: Lev Stipakov <lev@openvpn.net>
Acked-by: Gert Doering <gert@greenie.muc.de>
Message-Id: <1538818219-18141-1-git-send-email-lstipakov@gmail.com>
URL: https://www.mail-archive.com/search?l=mid&q=1538818219-18141-1-git-send-email-lstipakov@gmail.com
Signed-off-by: Gert Doering <gert@greenie.muc.de>
(cherry picked from commit 39326238dca7c28368928f728c5a3c80031255e5)