On Sat, Dec 31, 2022 at 02:32:30PM -0700, Todd C. Miller wrote:
> Updated version.  I kept "The BLOCKSIZE environment variable" in
> the -P description since it is the first time the man page metions
> BLOCKSIZE.
> 
>  - todd
> 

certainly ok by me.
jmc

> Index: bin/df/df.1
> ===================================================================
> RCS file: /cvs/src/bin/df/df.1,v
> retrieving revision 1.48
> diff -u -p -u -r1.48 df.1
> --- bin/df/df.1       10 Aug 2016 19:46:43 -0000      1.48
> +++ bin/df/df.1       31 Dec 2022 21:29:50 -0000
> @@ -100,6 +100,9 @@ with the possibly stale statistics that 
>  .It Fl P
>  Print out information in a stricter format designed to be parsed
>  by portable scripts.
> +The
> +.Ev BLOCKSIZE
> +environment variable is ignored when this option is specified.
>  .It Fl t Ar type
>  Indicate the actions should only be taken on
>  file systems of the specified
> @@ -125,14 +128,13 @@ the last option given overrides the othe
>  .Sh ENVIRONMENT
>  .Bl -tag -width BLOCKSIZE
>  .It Ev BLOCKSIZE
> -If the environment variable
> -.Ev BLOCKSIZE
> -is set, and the
> -.Fl h
> +Display block counts in units of size
> +.Dv BLOCKSIZE .
> +Ignored if any of the
> +.Fl h , k
>  or
> -.Fl k
> -options are not specified, the block counts will be displayed in units of 
> that
> -size block.
> +.Fl P
> +options are specified.
>  .El
>  .Sh EXIT STATUS
>  .Ex -std df

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