Fix many compiler warnings. There should only be two changes in behavior: arogue7/fight.c, arogue7/fight.c: a to-hit bonus is now correctly applied to characters who are not monks instead of monks who are not empty-handed. urogue/fight.c: fixed an interaction with the "debug" macro that could cause the wrong message to be displayed.

--- a/rogue4/options.c	Sat Mar 20 22:36:52 2021 -0400
+++ b/rogue4/options.c	Wed Apr 14 18:55:33 2021 -0400
@@ -15,6 +15,7 @@
 #include <curses.h>
 #include <ctype.h>
 #include <string.h>
+#include <stdlib.h>
 #include "rogue.h"
 
 #define	EQSTR(a, b, c)	(strncmp(a, b, c) == 0)