git: cpdup(1): Improve the help text a bit

[Aaron LI]

commit bfb6f159461bac61dba97611ac33111accea3a9d
Author: Aaron LI <aly at aaronly.me>
Date:   Tue Oct 29 22:43:47 2019 +0800

    cpdup(1): Improve the help text a bit
    
    * Better format the help text to be clearer.
    * The 'dest' argument is mandatory.
    
    See also: https://github.com/DragonFlyBSD/cpdup/commit/22ef5685c8dd2ec770f7f2ee62f54b6e2b5f5f23

Summary of changes:
 bin/cpdup/misc.c | 21 ++++++++++++---------
 1 file changed, 12 insertions(+), 9 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/bfb6f159461bac61dba97611ac33111accea3a9d


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