git: 5c3b5af6a2f6 - main - Mark usage function as __dead2 in programs where it does not return

The branch main has been updated by imp:

URL: https://cgit.FreeBSD.org/src/commit/?id=5c3b5af6a2f6ebcccb73d1472f0aac63cacdee7f

commit 5c3b5af6a2f6ebcccb73d1472f0aac63cacdee7f
Author:     Alfonso Gregory <gfunni234@gmail.com>
AuthorDate: 2023-07-07 16:39:23 +0000
Commit:     Warner Losh <imp@FreeBSD.org>
CommitDate: 2023-07-07 16:45:18 +0000

    Mark usage function as __dead2 in programs where it does not return
    
    In most cases, usage does not return, so mark them as __dead2. For the
    cases where they do return, they have not been marked __dead2.
    
    Reviewed by: imp
    Pull Request: https://github.com/freebsd/freebsd-src/pull/735
---
 tools/tools/switch_tls/switch_tls.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/tools/switch_tls/switch_tls.c b/tools/tools/switch_tls/switch_tls.c
index 788926bfb92a..fecf58f429cb 100644
--- a/tools/tools/switch_tls/switch_tls.c
+++ b/tools/tools/switch_tls/switch_tls.c
@@ -61,7 +61,7 @@ static bool tcpswitchall(const char *, int);
 static bool tcpswitchbyname(const char *, const char *, const char *,
     const char *, int);
 static bool tcpswitchconn(const struct in_conninfo *, int);
-static void usage(void);
+static void usage(void) __dead2;
 
 /*
  * Switch a tcp connection.