Wizard mode shows the number of points needed to reach the next level
(unless already maxxed out at 30) for ^X and end of game disclosure.
Do it in normal play for the latter too. (I think it would ok to do
that for ^X too but haven't gone that far.)
Even when it was wizard mode only, the phrasing for past tense had a
minor grammar bug, and it could make the line a little too long for
tty and curses (not sure about others) when level was high, resulting
in wrapped text. That looked bad for tty, which first tries removing
indentation (just 1 space in this case), making that line outdented
as well as wrapped. So change the phrasing slightly when experience
level is 'too high'. I had a version which formatted, measured, and
re-formatted if necessary but that was overkill; simple hardcoded
rephrasing suffices particularly when measuring was against assumed
display width (80) rather than actual width.