git: libc: Fix building with -fno-common.

[Sascha Wildner]

commit 48ba28f4cab36fe4e3f3985e5e793cbb3df4aafa
Author: Sascha Wildner <saw at online.de>
Date:   Sat Jun 27 15:25:08 2020 +0200

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

Summary of changes:
 lib/libc/rpc/rpc_com.h | 4 ++--
 lib/libc/rpc/svc.c     | 3 +++
 2 files changed, 5 insertions(+), 2 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/48ba28f4cab36fe4e3f3985e5e793cbb3df4aafa


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