git: systat(1): Fix building with -fno-common.

[Sascha Wildner]

commit e89cf083729d92a54712c70909350cf83b0bd971
Author: Sascha Wildner <saw at online.de>
Date:   Tue Jun 30 23:11:15 2020 +0200

    systat(1): Fix building with -fno-common.
    
    -fno-common will be default in future compilers (GCC 10, for example).

Summary of changes:
 usr.bin/systat/extern.h | 2 ++
 usr.bin/systat/iostat.c | 2 +-
 usr.bin/systat/netbw.c  | 1 -
 usr.bin/systat/pftop.c  | 1 -
 usr.bin/systat/swap.c   | 3 ---
 usr.bin/systat/vmstat.c | 4 ++--
 6 files changed, 5 insertions(+), 8 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/e89cf083729d92a54712c70909350cf83b0bd971


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