- Wrap long line;

- Add -, to SYNOPSIS section.

MFC after:	2 weeks

bin/df/df.1

@@ -29,7 +29,7 @@
 .\"     @(#)df.1	8.3 (Berkeley) 5/8/95
 .\" $FreeBSD$
 .\"
-.Dd November 16, 2012
+.Dd January 24, 2012
 .Dt DF 1
 .Os
 .Sh NAME
@@ -39,6 +39,7 @@
 .Nm
 .Op Fl b | g | H | h | k | m | P
 .Op Fl acilnT
+.Op Fl \&,
 .Op Fl t Ar type
 .Op Ar file | filesystem ...
 .Sh DESCRIPTION

bin/df/df.c

@@ -564,7 +564,8 @@ usage(void)
 {
 
 	(void)fprintf(stderr,
-"usage: df [-b | -g | -H | -h | -k | -m | -P] [-acilnT] [-t type] [-,] [file | filesystem ...]\n");
+"usage: df [-b | -g | -H | -h | -k | -m | -P] [-acilnT] [-t type] [-,]\n"
+"          [file | filesystem ...]\n");
 	exit(EX_USAGE);
 }