git: polling: Adjust comment

[Sepherosa Ziehau]

commit 85b010b0b8a110f57eb40b8f0e3ba534313e674f
Author: Sepherosa Ziehau <sephe at dragonflybsd.org>
Date:   Mon Sep 25 12:34:07 2017 +0800

    polling: Adjust comment

Summary of changes:
 sys/net/if_poll.c | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/85b010b0b8a110f57eb40b8f0e3ba534313e674f


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