git: tools/pw-update.sh: Improve to update user/group

[Aaron LI]

commit 1bc30ec4482e6c2d6b7585df56dfd1c6b55c6144
Author: Aaron LI <aly at aaronly.me>
Date:   Tue Dec 29 21:48:53 2020 +0800

    tools/pw-update.sh: Improve to update user/group
    
    Before this change, this script would only add new users and/or groups,
    but wouldn't modify existing users/groups.  This change add this
    ability.

Summary of changes:
 tools/pw-update.sh | 83 +++++++++++++++++++++++++++++++++++++++++++++++++++---
 1 file changed, 79 insertions(+), 4 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/1bc30ec4482e6c2d6b7585df56dfd1c6b55c6144


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