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/sticks.c

@@ -16,12 +16,14 @@
 #include <string.h>
 #include "rogue.h"
 
+void drain(void);
+
 /*
  * fix_stick:
  *	Set up a new stick
  */
-fix_stick(cur)
-register THING *cur;
+void
+fix_stick(THING *cur)
 {
     if (strcmp(ws_type[cur->o_which], "staff") == 0)
 	strcpy(cur->o_damage,"2d3");
@@ -45,7 +47,8 @@ register THING *cur;
  * do_zap:
  *	Perform a zap with a wand
  */
-do_zap()
+void
+do_zap(void)
 {
     register THING *obj, *tp;
     register int y, x;
@@ -272,7 +275,8 @@ do_zap()
  * drain:
  *	Do drain hit points from player shtick
  */
-drain()
+void
+drain(void)
 {
     register THING *mp;
     register int cnt;
@@ -321,9 +325,8 @@ drain()
  * fire_bolt:
  *	Fire a bolt in a given direction from a specific starting place
  */
-fire_bolt(start, dir, name)
-coord *start, *dir;
-char *name;
+void
+fire_bolt(coord *start, coord *dir, char *name)
 {
     register char dirch, ch;
     register THING *tp;
@@ -446,8 +449,7 @@ def:
  *	Return an appropriate string for a wand charge
  */
 char *
-charge_str(obj)
-register THING *obj;
+charge_str(THING *obj)
 {
     static char buf[20];