reduce verbosity in usage and make it match SYNOPSIS; i reformatted it to match 80w, and removed two functions that had been used to populate usage: getdistoptlist and msgprusage;

ok millert

usr.bin/rdist/client.h

···
-/*	$OpenBSD: client.h,v 1.3 2017/08/30 07:42:52 otto Exp $	*/
+/*	$OpenBSD: client.h,v 1.4 2021/06/22 20:19:28 jmc Exp $	*/
 
 #ifndef __CLIENT_H__
 #define __CLIENT_H__
···
 
 /* distopt.c */
 int parsedistopts(char *, opt_t *, int);
-char *getdistoptlist(void);
 char *getondistoptlist(opt_t);
 
 /* docmd.c */

usr.bin/rdist/defs.h

···
-/*	$OpenBSD: defs.h,v 1.38 2018/09/21 19:00:45 millert Exp $	*/
+/*	$OpenBSD: defs.h,v 1.39 2021/06/22 20:19:28 jmc Exp $	*/
 
 #ifndef __DEFS_H__
 #define __DEFS_H__
···
 char *searchpath(char *);
 
 /* message.c */
-void msgprusage(void);
 void msgprconfig(void);
 char *msgparseopts(char *, int);
 void checkhostname(void);

usr.bin/rdist/distopt.c

···
-/*	$OpenBSD: distopt.c,v 1.13 2015/01/20 09:00:16 guenther Exp $	*/
+/*	$OpenBSD: distopt.c,v 1.14 2021/06/22 20:19:28 jmc Exp $	*/
 
 /*
  * Copyright (c) 1983 Regents of the University of California.
···
 		(void) free(string);
 
 	return(nerrs);
-}
-
-/*
- * Get a list of the Distfile Option Entries.
- */
-char *
-getdistoptlist(void)
-{
-	int i;
-	static char buf[1024];
-
-	for (i = 0, buf[0] = CNULL; distoptinfo[i].do_name; ++i) {
-		if (buf[0] == CNULL)
-			(void) strlcpy(buf, distoptinfo[i].do_name, sizeof buf);
-		else {
-			(void) strlcat(buf, ",", sizeof buf);
-			(void) strlcat(buf, distoptinfo[i].do_name, sizeof buf);
-		}
-	}
-
-	return(buf);
 }
 
 /*

usr.bin/rdist/message.c

···
-/*	$OpenBSD: message.c,v 1.29 2019/06/28 05:35:35 deraadt Exp $	*/
+/*	$OpenBSD: message.c,v 1.30 2021/06/22 20:19:28 jmc Exp $	*/
 
 /*
  * Copyright (c) 1983 Regents of the University of California.
···
 static void _debugmsg(int, char *);
 static void _error(const char *);
 static void _fatalerr(const char *);
-
-/*
- * Print message logging usage message
- */
-void
-msgprusage(void)
-{
-	int i, x;
-
-	(void) fprintf(stderr, "\nWhere <msgopt> is of form\n");
-	(void) fprintf(stderr, 
-       "\t<facility1>=<type1>,<type2>,...:<facility2>=<type1>,<type2>...\n");
-
-	(void) fprintf(stderr, "Valid <facility> names:");
-
-	for (i = 0; msgfacility[i].mf_name; ++i)
-		(void) fprintf(stderr, " %s", msgfacility[i].mf_name);
-
-	(void) fprintf(stderr, "\nValid <type> names:");
-	for (x = 0; msgtypes[x].mt_name; ++x)
-		(void) fprintf(stderr, " %s", msgtypes[x].mt_name);
-
-	(void) fprintf(stderr, "\n");
-}
 
 /*
  * Print enabled message logging info

usr.bin/rdist/rdist.c

···
-/*	$OpenBSD: rdist.c,v 1.31 2017/07/09 14:04:50 espie Exp $	*/
+/*	$OpenBSD: rdist.c,v 1.32 2021/06/22 20:19:28 jmc Exp $	*/
 
 /*
  * Copyright (c) 1983 Regents of the University of California.
···
 	extern char *__progname;
 
 	(void) fprintf(stderr,
-		"usage: %s [-DFnV] [-A num] [-a num] "
-		"[-c mini_distfile]\n"
-		"\t[-d var=value] [-f distfile] [-L remote_logopts] "
-		"[-l local_logopts]\n"
-		"\t[-M maxproc] [-m host] [-o distopts] [-P rsh-path] "
-		"[-p rdistd-path]\n"
-		"\t[-t timeout] [name ...]\n", __progname);
-
-
-	(void) fprintf(stderr, "\nThe values for <distopts> are:\n\t%s\n",
-		       getdistoptlist());
-
-	msgprusage();
+		"usage: %s [-DFnV] [-A num] [-a num] [-c mini_distfile]"
+		" [-d var=value]\n"
+		"\t[-f distfile] [-L remote_logopts] [-l local_logopts]"
+		" [-M maxproc]\n"
+		"\t[-m host] [-o distopts] [-P rsh-path] [-p rdistd-path]"
+		" [-t timeout]\n"
+		"\t[name ...]\n", __progname);
 
 	exit(1);
 }