rogue4: fix most GCC5 warnings.

Converting all function definitions to ANSI style accounts for most of
the change.  This has exposed other problems, such as daemons not
actually being their stated type, that will require more careful
solutions.

rogue4/rip.c

@@ -19,6 +19,8 @@
 #include <stdlib.h>
 #include "rogue.h"
 
+char *killname(char monst, bool doart);
+
 static char *rip[] = {
 "                       __________",
 "                      /          \\",
@@ -41,9 +43,8 @@ static char *rip[] = {
  *	Figure score and post it.
  */
 /* VARARGS2 */
-score(amount, flags, monst)
-int amount, flags;
-char monst;
+void
+score(int amount, int flags, char monst)
 {
     register struct sc_ent *scp;
     register int i;
@@ -297,8 +298,8 @@ void writelog(int amount, int flags, char monst)
  * death:
  *	Do something really fun when he dies
  */
-death(monst)
-register char monst;
+void
+death(char monst)
 {
     register char **dp = rip, *killer;
     register struct tm *lt;
@@ -341,7 +342,8 @@ register char monst;
  * total_winner:
  *	Code for a winner
  */
-total_winner()
+void
+total_winner(void)
 {
     register THING *obj;
     register int worth = 0;
@@ -461,9 +463,7 @@ total_winner()
  *	Convert a code to a monster name
  */
 char *
-killname(monst, doart)
-register char monst;
-bool doart;
+killname(char monst, bool doart)
 {
     register const char *sp;
     register bool article;