git: Use 'null' and 'NULL' instead of 'nil' in some manual pages.

[Sascha Wildner]

commit 8095c9049040b8aa7733ed6979727f158005f98e
Author: Sascha Wildner <saw at online.de>
Date:   Tue Feb 6 09:49:30 2018 +0100

    Use 'null' and 'NULL' instead of 'nil' in some manual pages.

Summary of changes:
 lib/libc/sys/acct.2      |  3 +--
 lib/libc/sys/adjtime.2   |  3 +--
 lib/libc/sys/getitimer.2 |  2 +-
 lib/libc/sys/select.2    | 11 +++++------
 lib/librt/aio_suspend.3  |  4 ++--
 share/man/man9/ifnet.9   |  2 +-
 6 files changed, 11 insertions(+), 14 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/8095c9049040b8aa7733ed6979727f158005f98e


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