Declare usage() functions as __dead void, if they don't return, on games section.

Found another one in arithmetic(6) which also didn't return, and removed a function from number(6) which is not used anymore.

OK tb@

2 files changed, 4 insertions, 4 deletions

diff --git a/games/fortune/fortune/fortune.c b/games/fortune/fortune/fortune.c
index 1c9da5b4aee..3250420be74 100644
--- a/games/fortune/fortune/fortune.c
+++ b/games/fortune/fortune/fortune.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: fortune.c,v 1.47 2015/11/10 15:29:11 deraadt Exp $	*/
+/*	$OpenBSD: fortune.c,v 1.48 2015/12/25 20:59:09 mestre Exp $	*/
 /*	$NetBSD: fortune.c,v 1.8 1995/03/23 08:28:40 cgd Exp $	*/
 
 /*-
@@ -136,7 +136,7 @@ void	 print_file_list(void);
 void	 print_list(FILEDESC *, int);
 void	 sum_noprobs(FILEDESC *);
 void	 sum_tbl(STRFILE *, STRFILE *);
-void	 usage(void);
+__dead void	 usage(void);
 void	 zero_tbl(STRFILE *);
 
 char	*conv_pat(char *);
diff --git a/games/fortune/strfile/strfile.c b/games/fortune/strfile/strfile.c
index c44c37fb8e9..579ea18a55e 100644
--- a/games/fortune/strfile/strfile.c
+++ b/games/fortune/strfile/strfile.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: strfile.c,v 1.23 2015/10/24 18:33:22 mmcc Exp $	*/
+/*	$OpenBSD: strfile.c,v 1.24 2015/12/25 20:59:09 mestre Exp $	*/
 /*	$NetBSD: strfile.c,v 1.4 1995/04/24 12:23:09 cgd Exp $	*/
 
 /*-
@@ -114,7 +114,7 @@ void do_order(void);
 void getargs(int, char **);
 void randomize(void);
 char *unctrl(char);
-void usage(void);
+__dead void usage(void);
 
 /*
  * main: