detect write error on stdout

* src/fid.c: Include "closeout.h".
(main): Use it via atexit.
* src/fnid.c (main): Likewise.
* src/lid.c (main): Likewise.
* src/mkid.c (main): Likewise.
* src/xtokid.c (main): Likewise.
* NEWS: Mention the bug fixes.

1 files changed, 3 insertions, 0 deletions

diff --git a/src/fnid.c b/src/fnid.c
index d20c543..6a81189 100644
--- a/src/fnid.c
+++ b/src/fnid.c
@@ -29,6 +29,7 @@
 #include <pathmax.h>
 #include <error.h>
 
+#include "closeout.h"
 #include "xnls.h"
 #include "idfile.h"
 #include "iduglobal.h"
@@ -97,6 +98,8 @@ main (int argc, char **argv)
   textdomain (PACKAGE);
 #endif
 
+  atexit (close_stdout);
+
   for (;;)
     {
       int optc = getopt_long (argc, argv, "f:S:",