tweaks to a few command flags

The #twoweapon command was flagged as autocomplete back when using
an extended command was the only way to execute it.  Take that off
since simple 'X' suffices.  Do the same for wizard mode commands
that can be invoked with control characters.  Probably ought to do
the same for #overview too but this change doesn't.

I started to add the autocomplete flag for #exploremode but that
would require an extra letter for #enhance so I decided not to.

There are some wizard mode commands that can't be executed under
X11 because they aren't flagged to autocomplete and its extended
command selection widget only offers autocomplete commands as
choices.  I haven't attempted to change that.

Always require paranoid confirmation for #panic rather than just
when it has been enabled for #quit.

doc/fixes37.0

@@ -1,4 +1,4 @@
-NHDT-Branch: NetHack-3.7 $:$NHDT-Revision: 1.498 $ $NHDT-Date: 1617388018 2021/04/02 18:26:58 $
+NHDT-Branch: NetHack-3.7 $:$NHDT-Revision: 1.503 $ $NHDT-Date: 1618175625 2021/04/11 21:13:45 $
 
 General Fixes and Modified Features
 -----------------------------------
@@ -445,6 +445,10 @@ for menustyle:full, the 'A' menu choice to auto-select everything now only
 using travel to move one step diagonally where that step was blocked by being
 	too narrow to squeeze through stopped travel instead of considering
 	alternate routes to the destination
+turn off input autocompletion for '#twoweapon' since simple 'X' invokes it;
+	likewise for #wizdetect (^E), #wizgenesis (^G), #wizidentify (^I),
+	#wizlevelport (^V), #wizmap (^F), and #wizwish (^W); probably ought
+	to do so for #overview (^O) too but that one still autocompletes
 
 
 Fixes to 3.7.0-x Problems that Were Exposed Via git Repository