WARNS=4, de-__P()

usr.sbin/accton/Makefile

@@ -4,6 +4,6 @@
 PROG=	accton
 MAN=	accton.8
 
-WARNS?=	2
+WARNS?=	4
 
 .include <bsd.prog.mk>

usr.sbin/accton/accton.c

@@ -52,12 +52,10 @@ static const char rcsid[] =
 #include <string.h>
 #include <unistd.h>
 
-static void usage __P((void));
+static void usage(void);
 
 int
-main(argc, argv)
-	int argc;
-	char *argv[];
+main(int argc, char *argv[])
 {
 	int ch;