#enhance docs again

Since "weapons and spell skills" is grammatically suspect and
"weapons and spells skills" sounds odd, change to "weapon and spell skills"
in both the Guidebook and the game's online descriptions.  The #enhance
command itself uses "current skills" and doesn't need any alteration.

dat/hh

@@ -88,7 +88,7 @@ M-2     twoweapon toggle two-weapon combat (unless number_pad is enabled)
 M-a     adjust  adjust inventory letters
 M-c     chat    talk to someone
 M-d     dip     dip an object into something
-M-e     enhance advance or check weapons or spell skills
+M-e     enhance advance or check weapon and spell skills
 M-f     force   force a lock
 M-i     invoke  invoke an object's special powers
 M-j     jump    jump to another location

doc/Guidebook.mn

@@ -5,7 +5,7 @@
 .ds vr "NetHack 3.4
 .ds f0 "\*(vr
 .ds f1
-.ds f2 "December 2, 2003
+.ds f2 "October 29, 2004
 .mt
 A Guide to the Mazes of Menace
 (Guidebook for NetHack)
@@ -683,7 +683,7 @@ List voluntary challenges you have maintained.  See the section below entitled
 .lp #dip
 Dip an object into something.
 .lp #enhance
-Advance or check weapons and spell skills.
+Advance or check weapon and spell skills.
 .lp #force
 Force a lock.
 .lp #invoke

doc/Guidebook.tex

@@ -27,7 +27,7 @@
 \begin{document}
 %
 % input file: guidebook.mn
-% $Revision: 1.84 $ $Date: 2004/03/13 01:27:21 $
+% $Revision: 1.85 $ $Date: 2004/10/28 01:48:52 $
 %
 %.ds h0 "
 %.ds h1 %.ds h2 \%
@@ -40,7 +40,7 @@
 %.au
 \author{Eric S. Raymond\\
 (Extensively edited and expanded for 3.4)}
-\date{December 2, 2003}
+\date{October 29, 2004}
 
 \maketitle
 
@@ -906,7 +906,7 @@ List voluntary challenges you have maintained.  See the section below entitled
 Dip an object into something.
 %.lp
 \item[\tb{\#enhance}]
-Advance or check weapons and spell skills.
+Advance or check weapon and spell skills.
 %.lp
 \item[\tb{\#force}]
 Force a lock.

src/cmd.c

@@ -1548,7 +1548,7 @@ struct ext_func_tab extcmdlist[] = {
 	{"conduct", "list voluntary challenges you have maintained",
 						doconduct, TRUE},
 	{"dip", "dip an object into something", dodip, FALSE},
-	{"enhance", "advance or check weapons and spell skills",
+	{"enhance", "advance or check weapon and spell skills",
 						enhance_weapon_skill, TRUE},
 	{"force", "force a lock", doforce, FALSE},
 	{"invoke", "invoke an object's powers", doinvoke, TRUE},