git: ifconfig.8: Update to show '-d' and '-u' is mutually exclusive

[Aaron LI]

commit 7d438afad0520862de97054e705e9e7e184a5e3d
Author: Aaron LI <aly at aaronly.me>
Date:   Fri Jun 26 22:21:56 2020 +0800

    ifconfig.8: Update to show '-d' and '-u' is mutually exclusive

Summary of changes:
 sbin/ifconfig/ifconfig.8 | 18 ++++++++++++------
 sbin/ifconfig/ifconfig.c |  6 +++---
 2 files changed, 15 insertions(+), 9 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/7d438afad0520862de97054e705e9e7e184a5e3d


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