B04002 - blessed gain level vs XL 30

Fix the problem [reported in the newsgroup and forwarded by <Someone>]
of blessed potions of gain level having the possibility of reducing
your experience points if you were already level 30.  The random XP
value that averages "half way to next level" could be less than your
current experience if you had gotten to level 30 via such a blessed
potion or had drunk at least one of same since reaching that level.
This didn't really make any difference to game play since you weren't
losing any levels, HP, mana, or score, but it was visible to users who
enable the `showexp' option.

doc/fixes34.1

@@ -155,6 +155,7 @@ steed movement would use your speed if walking step by step
 kicking a known, unseen monster would sometimes leave behind an extra I symbol
 applying a lance against a long worm could cause an impossible
 a knight applying a lance did not do a caitiff check
+blessed gain level when already at level 30 won't reduce experience points
 
 
 Platform- and/or Interface-Specific Fixes