git: gdb.4/sysctl.9: Remove dead .Xr

[Sascha Wildner]

commit 4669995708554c390a2566040af699397ea547e4
Author: Sascha Wildner <saw at online.de>
Date:   Sat Jul 31 20:18:12 2021 +0200

    gdb.4/sysctl.9: Remove dead .Xr

Summary of changes:
 share/man/man4/gdb.4    | 1 -
 share/man/man9/sysctl.9 | 4 +---
 2 files changed, 1 insertion(+), 4 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/4669995708554c390a2566040af699397ea547e4


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