Back in January, Kaspars at Bankovskis dot net reported that the wc(1)

Back in January, Kaspars at Bankovskis dot net reported that the wc(1)
manual claims that -m would count characters, while our version of the
command actually doesn't, lacking POSIX multibyte support.  Since
nobody stood up to fix the code, sync the docs with reality for now.
OK jmc@