git: arp: Add sysctl to avoid creation failure log

[Sepherosa Ziehau]

commit c8b3a0b048590210ee5a75bdb4ae380972663d6f
Author: Sepherosa Ziehau <sephe at dragonflybsd.org>
Date:   Tue May 5 21:03:50 2015 +0800

    arp: Add sysctl to avoid creation failure log
    
    It could be annoying sometime.

Summary of changes:
 sys/netinet/if_ether.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/c8b3a0b048590210ee5a75bdb4ae380972663d6f


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