For fixing it permanently, see /etc/sysconfig/i18n. It's a known unicode problem in redhat 8.
I hardly use the text mode man command anymore, though. I've found the best solution to be postscript man pages. The downside is that you can't search, but if you want to search then just view it in text mode. I find the postscript output easier to look at than the text output. I've made a little script which I call mangv, which looks like this:
Code:
#!/bin/sh
file="`mktemp /tmp/manXXXXXX`"
if ! man -t "$@" >$file; then
rm $file
exit 1
fi
ggv $file
rm $file