Fix description of Stone Wall spell

git-svn-id: http://svn.net-core.org/repos/t-engine4@1137 51575b47-30f0-44d4-a5cc-537603b46e54

game/modules/tome/data/talents/spells/earth.lua

@@ -161,6 +161,7 @@ newTalent{
 		return true
 	end,
 	info = function(self, t)
-		return ([[Entombs yourself in a wall of stone for %d turns.]]):format(2 + self:combatSpellpower(0.03) * self:getTalentLevel(t))
+		return ([[Entombs yourself in a wall of stone for %d turns.
+		At level 4 it becomes targettable.]]):format(2 + self:combatSpellpower(0.03) * self:getTalentLevel(t))
 	end,
 }