fix #4005 - paranoid_confirm:Autoall

When paranoid confirmation for menustyle:full's "Autoselect all" is
enabled, it is handling yes vs no backwards.

The initial implementation had it right, then a negation got dropped
when it was expanded to support yes|no via paranoid_confirm:Confirm.

ESC is being treated as 'n' rather than as cancel.  Fixing that will
take some more work.  This just adds the missing negation to make 'y'
and 'n' behave properly.

doc/fixes3-7-0.txt

@@ -1673,6 +1673,8 @@ using wizard mode #wizkill outside the endgame followed by m^V to enter the
 	endgame without any intervening moves would result in impossible
 	"dmonsfree: 0 removed doesn't match N pending on <endgame level>"
 dwarf/elf/orc/gnome hero killed by zombie would rise as human zombie for bones
+paranoid_confirm:Autoall for menustyle:full has the test handling backward and
+	was treating 'yes' as no and 'n' or ESC as 'y'
 
 
 Fixes to 3.7.0-x Platform and/or Interface Problems Exposed Via git Repository

src/pickup.c

@@ -1364,8 +1364,8 @@ query_category(
                 /* ParanoidAutoAll is set (otherwise verify_All is false);
                    if ParanoidConfirm is also set, require "yes" rather than
                    just "y" to accept (and "no" rather than "n" to decline) */
-                if (paranoid_query(ParanoidConfirm,
-                                   "Really autoselect All?")) {
+                if (!paranoid_query(ParanoidConfirm,
+                                    "Really autoselect All?")) {
                     /* answer is "no", so take 'A' out of the list;
                        if it is the only entry, we'll return nothing,
                        otherwise go on to next menu without autoselect */