Synchronize usage() and SYNOPSIS, and fix them (flags are not

optional here).  Sort options.  Print the file name on error.

2 files changed, 5 insertions, 5 deletions

diff --git a/usr.bin/elfdump/elfdump.1 b/usr.bin/elfdump/elfdump.1
index f310cdb..c159c7d 100644
--- a/usr.bin/elfdump/elfdump.1
+++ b/usr.bin/elfdump/elfdump.1
@@ -34,7 +34,7 @@
 files
 .Sh SYNOPSIS
 .Nm
-.Op Fl a | cdeiGhnprs
+.Fl a | cdeGhinprs
 .Op Fl w Ar file
 .Ar file
 .Sh DESCRIPTION
@@ -55,12 +55,12 @@ Dump shared headers.
 Dump dynamic symbols.
 .It Fl e
 Dump ELF header.
-.It Fl i
-Dump the dynamic interpreter.
 .It Fl G
 Dump the GOT.
 .It Fl h
 Dump the hash values.
+.It Fl i
+Dump the dynamic interpreter.
 .It Fl n
 Dump note sections.
 .It Fl p
diff --git a/usr.bin/elfdump/elfdump.c b/usr.bin/elfdump/elfdump.c
index fd92c2d..89b24e9 100644
--- a/usr.bin/elfdump/elfdump.c
+++ b/usr.bin/elfdump/elfdump.c
@@ -441,7 +441,7 @@ main(int ac, char **av)
 		usage();
 	if ((fd = open(*av, O_RDONLY)) < 0 ||
 	    fstat(fd, &sb) < 0)
-		err(1, NULL);
+		err(1, "%s", *av);
 	e = mmap(NULL, sb.st_size, PROT_READ, MAP_SHARED, fd, 0);
 	if (e == MAP_FAILED)
 		err(1, NULL);
@@ -1109,6 +1109,6 @@ elf_get_quad(Elf32_Ehdr *e, void *base, elf_member_t member)
 void
 usage(void)
 {
-	fprintf(stderr, "usage: elfdump [-acdeiGhnprs] [-w file] filename\n");
+	fprintf(stderr, "usage: elfdump -a | -cdeGhinprs [-w file] file\n");
 	exit(1);
 }