git: iscontrol(8): Fix building with -fno-common.

[Sascha Wildner]

commit 760270c44e03ee720bfa3900cacf0002388a52b4
Author: Sascha Wildner <saw at online.de>
Date:   Sat Jun 27 22:55:18 2020 +0200

    iscontrol(8): Fix building with -fno-common.
    
    -fno-common will be default in future compilers (GCC 10, for example).

Summary of changes:
 sbin/iscontrol/iscontrol.c | 7 +++----
 sbin/iscontrol/iscontrol.h | 6 ++----
 2 files changed, 5 insertions(+), 8 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/760270c44e03ee720bfa3900cacf0002388a52b4


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