In https://bugzilla.redhat.com/show_bug.cgi?id=1611292, there are various warnings about repeated words where the repeated word has markup in the manpage.

For example, in gcc's manpage, there's a warning about "function function".

This is within "-fno-builtin-function" where the decompressed manpage has:

    "only the built-in function \fIfunction\fR is"

where the 2nd "function" is a placeholder, with markup.

There are various such cases in gcc's manpage; ideally they should not be flagged.