git: route6d(8): Staticize and remove unused variables/functions.

[Sascha Wildner]

commit e86812383394d172b555eeef8184e52f50c4e6a8
Author: Sascha Wildner <saw at online.de>
Date:   Sat Jan 13 11:35:54 2018 +0100

    route6d(8): Staticize and remove unused variables/functions.
    
    While here, use __printflike(), fix a va_end() after exit() case and
    print strerror() in fatal() only if errno is actually set (this last
    one was taken from FreeBSD).

Summary of changes:
 usr.sbin/route6d/route6d.c | 323 ++++++++++++++++++++-------------------------
 1 file changed, 141 insertions(+), 182 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/e86812383394d172b555eeef8184e52f50c4e6a8


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