fix part of #H4062 - high priest name refusal

fix part of #H4062 - high priest name refusal

    High priests used a different message to refuse accepting a user-supplied
    name than regular temple priests because they're flagged as unique.  The
    effect was cosmetic; it didn't reopen the hole that let you recognize
    which high priest was which via the 'C' command on the Astral Plane.

    [I never received the mail for #H4062 but saw it in bugzilla.]