Function formatted_mpr

crawl-ref/source/message.cc:2320–2324

XX unclear why we have both this and an overload of mpr that takes a formatted_string

// XX unclear why we have both this and an overload of mpr that takes a
// formatted_string
void formatted_mpr(const formatted_string& fs,
                   msg_channel_type channel, int param)
{
    _mpr(fs.to_colour_string(), channel, param);
}