git: pcm.4: Use .Dx

[Sascha Wildner]

commit 2e4be8194987813f11a8db0e3bb02cc949d5c016
Author: Sascha Wildner <saw at online.de>
Date:   Sat Jan 26 09:51:08 2019 +0100

    pcm.4: Use .Dx

Summary of changes:
 share/man/man4/pcm.4 | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/2e4be8194987813f11a8db0e3bb02cc949d5c016


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