Guidebook.tex: reroll

Add missing reroll-option
Remove one mangled line.

doc/Guidebook.tex

@@ -5107,9 +5107,20 @@ for a description of how to use negation to exclude choices.
 \\
 If \texttt{race} is not specified, there is no default value;
 player will be prompted unless role forces a choice for race.
-unless role forces a choice for race.
 Cannot be set with the `\texttt{O}' command.  Persistent.
 %.lp
+\item[reroll]
+Allows rerolling your character's starting inventory and attributes (default
+false).  Persistent.
+%.lp ""
+\\
+Note that rerolling your character is not a recommended way to play if aiming
+merely to win (a lucky start has a much smaller influence on whether or not
+you win the game than your actions later in the game).  This option exists
+partly as an acknowledgement that some players will insist on doing so anyway,
+and partly because rerolling may be necessary for certain types of challenge
+games.
+%.lp
 \item[rest\textunderscore on\textunderscore space]
 Make the space bar a synonym for the `\texttt{.}' (\#wait) command (default off).
 Persistent.