(usage): Include one- or two-line synopsis in --help output.

From Karl Berry.

1 files changed, 2 insertions, 2 deletions

diff --git a/src/tac.c b/src/tac.c
index 8ddfdd1fd..06b373bcc 100644
--- a/src/tac.c
+++ b/src/tac.c
@@ -140,14 +140,14 @@ Usage: %s [OPTION]... [FILE]...\n\
 ",
 	      program_name);
       printf ("\
+Write each FILE to standard output, last line first.\n\
+With no FILE, or when FILE is -, read standard input.\n\
 \n\
   -b, --before             attach the separator before instead of after\n\
   -r, --regex              interpret the separator as a regular expression\n\
   -s, --separator=STRING   use STRING as the separator instead of newline\n\
       --help               display this help and exit\n\
       --version            output version information and exit\n\
-\n\
-With no FILE, or when FILE is -, read standard input.\n\
 ");
     }
   exit (status);