pkg upgrade has no description of what -x does

[tech-lists]

Hi,

man pkg-upgrade has a summary like this

SYNOPSIS
     pkg upgrade [-fInFqUy] [-r reponame] [-Cgix]
                 [<pkg-origin|pkg-name|pkg-name-version> ...]

but nothing mentioning -x as an option in the rest of the document.

I'm hoping it's a switch for exclude wildcard. Is it?

thanks,
-- 
J.
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