git: cpdup(1): Move version and authors info to cpdup.h and bump version

[Aaron LI]

commit 66641ee9cd450b284e0d973100829a5f2166c075
Author: Aaron LI <aly at aaronly.me>
Date:   Sun Apr 5 08:54:16 2020 +0800

    cpdup(1): Move version and authors info to cpdup.h and bump version
    
    Bump the tool version from 1.20 to 1.21 due to the recent microsecond
    timestamp precision support and protocol version bump.

Summary of changes:
 bin/cpdup/cpdup.h | 3 +++
 bin/cpdup/misc.c  | 2 +-
 2 files changed, 4 insertions(+), 1 deletion(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/66641ee9cd450b284e0d973100829a5f2166c075


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