the info page is right, but might as well fix up the man page since it
is so short and it had us confused:
-r defeat -s, use BSD sum algorithm, use 1K blocks
-s, --sysv
use System V sum algorithm, use 512 bytes blocks
would be clearer if it just said:
-r use BSD sum algorithm, use 1K blocks (the default)
-s, --sysv
use System V sum algorithm, use 512 bytes blocks
^---- might as well
remove this "s"
or just use the exact same verbage as info page:
By default, GNU `sum' computes checksums using an algorithm
compatible with BSD `sum' and prints file sizes in units of 1024-byte
blocks.
The program accepts the following options. Also see *Note Common
options::.
`-r'
Use the default (BSD compatible) algorithm. This option is
included for compatibility with the System V `sum'. Unless `-s'
was also given, it has no effect.
`-s'
`--sysv'
Compute checksums using an algorithm compatible with System V
`sum''s default, and print file sizes in units of 512-byte blocks.
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