[patch] ps.c mark usage() as __dead

[Martin Vahlensieck]

Hi

I'm not sure this is worth a diff, but here it is anyway.

Best,

Martin

Index: ps.c
===================================================================
RCS file: /cvs/src/bin/ps/ps.c,v
retrieving revision 1.76
diff -u -p -r1.76 ps.c
--- ps.c        16 Dec 2019 19:21:16 -0000      1.76
+++ ps.c        6 Apr 2020 09:54:47 -0000
@@ -69,10 +69,10 @@ int needcomm, needenv, neednlist, comman
 
 enum sort { DEFAULT, SORTMEM, SORTCPU } sortby = DEFAULT;
 
-static char    *kludge_oldps_options(char *);
-static int      pscomp(const void *, const void *);
-static void     scanvars(void);
-static void     usage(void);
+static char            *kludge_oldps_options(char *);
+static int              pscomp(const void *, const void *);
+static void             scanvars(void);
+static void __dead      usage(void);
 
 char dfmt[] = "pid tt state time command";
 char tfmt[] = "pid tid tt state time command";
@@ -482,7 +482,7 @@ kludge_oldps_options(char *s)
        return (newopts);
 }
 
-static void
+static void __dead
 usage(void)
 {
        (void)fprintf(stderr,