Guidebook bit

The shortest extended commands were being formatted differently in
Guidebook.txt than longer ones, looking a little odd.  Force them to seem
longer so that they all end up with similar formatting.

     Untested; based on how short option names are handled.  And I have no
idea whether the TeX version ought to have something similar done; I lack
the means to view it.  (In theory I could format it into Postscript,
transfer the result to a PC [a different one than what I'm using as a
terminal], convert it into PDF there, then use Acrobat to look at it.  In
practice, that's more effort than I care to expend for something so minor.)

doc/Guidebook.mn

@@ -691,7 +691,7 @@ Talk to someone.
 .lp #conduct
 List voluntary challenges you have maintained.  See the section below entitled
 ``Conduct'' for details.
-.lp #dip
+.lp "#dip "
 Dip an object into something.
 .lp #enhance
 Advance or check weapon and spell skills.
@@ -716,11 +716,11 @@ Pray to the gods for help.
 Quit the program without saving your game.
 .lp #ride
 Ride (or stop riding) a monster.
-.lp #rub
+.lp "#rub "
 Rub a lamp or a stone.
-.lp #sit
+.lp "#sit "
 Sit down.
-.lp #tip
+.lp "#tip "
 Tip over a container to pour out its contents.
 .lp #turn
 Turn undead.
@@ -734,7 +734,7 @@ Untrap something (trap, door, or chest).
 Print compile time options for this version of NetHack.
 .lp #wipe
 Wipe off your face.
-.lp #?
+.lp "#?   "
 Help menu:  get the list of available extended commands.
 .pg
 If your keyboard has a meta key (which, when pressed in combination