> I see that there exists a reference to an earlier mkisofs man page within
quoted text
> the mkhybrid(1) man page, whereas no such man page seems to exist.  There
> is a mkisofs.c which seems to be incorporated into mkhybrid nowadays, but
> I don't think there is any intention to support a man page for it.
> 
> Would submission of a diff to just eliminate the "(1)" reference, inside
> the man page for mkhybrid, be appropriate?

No.  This is a nasty piece of imported code.  We tend to leave problems
like that untouched, because otherwise it just creates a conflict next
time we update it.

There are very few places in the tree left with this.