Fix arcdie crash when called with more then 1 variable argument

Add proper vararg handling to fix crash on 64 bit machines when arcdie gets

called with more then 1 variable argument.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>

diff -up arc-5.21p/arcmisc.c~ arc-5.21p/arcmisc.c

--- arc-5.21p/arcmisc.c~	2010-08-07 15:06:42.000000000 +0200

+++ arc-5.21p/arcmisc.c	2015-01-16 16:10:29.322603290 +0100

@@ -4,6 +4,7 @@

  */

 #include <stdio.h>

+#include <stdarg.h>

 #include <ctype.h>

 #include "arc.h"

@@ -223,11 +224,13 @@ upper(string)

 }

 /* VARARGS1 */

 VOID

-arcdie(s, arg1, arg2, arg3)

-	char           *s;

+arcdie(const char *s, ...)

 {

+	va_list args;

 	fprintf(stderr, "ARC: ");

-	fprintf(stderr, s, arg1, arg2, arg3);

+	va_start(args, s);

+	vfprintf(stderr, s, args);

+	va_end(args);

 	fprintf(stderr, "\n");

 #if	UNIX

 	perror("UNIX");