[Nmh-workers] Selecting headers for mhshow to display

[norm]

For me, mhshow displays headers such as,

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that I'm not normally interested in. As I read mhshow, this depends on
the -form argument, which defaults to nmh/etc/mhl.headers .
I can't find documentation for mhl.headers, but evidently, its "ignores" line
lists headers to ignore.

So, if I give a -form formfile, argument to mhshow, with my own formfile,
I would have to list the headers that I don't want to see, rather than the
headers that I do want to see.

Are all my guesses correct?

    Norman Shapiro