(main): Close STDIN_FILENO rather than a literal `0'.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/tac.c b/src/tac.c
index b0da18ff4..69ec56f8b 100644
--- a/src/tac.c
+++ b/src/tac.c
@@ -710,7 +710,7 @@ main (int argc, char **argv)
   /* Flush the output buffer. */
   output ((char *) NULL, (char *) NULL);
 
-  if (have_read_stdin && close (0) < 0)
+  if (have_read_stdin && close (STDIN_FILENO) < 0)
     error (EXIT_FAILURE, errno, "-");
   exit (errors == 0 ? EXIT_SUCCESS : EXIT_FAILURE);
 }