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(usage): Use EXIT_SUCCESS, not 0, for clarity.

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(main): Don't assume EXIT_FAILURE == 1, as POSIX doesn't require it.
This commit is contained in:
Jim Meyering
2004-01-21 22:55:51 +00:00
parent b74d9dcfad
commit b8824abce2
1 changed files with 4 additions and 4 deletions
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src/df.c
+4 -4
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@@ -1,5 +1,5 @@
/* df - summarize free disk space
Copyright (C) 91, 1995-2003 Free Software Foundation, Inc.
Copyright (C) 91, 1995-2004 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
@@ -719,7 +719,7 @@ add_excluded_fs_type (const char *fstype)
void
usage (int status)
{
if (status != 0)
if (status != EXIT_SUCCESS)
fprintf (stderr, _("Try `%s --help' for more information.\n"),
program_name);
else
@@ -918,7 +918,7 @@ main (int argc, char **argv)
Fail if df was invoked with no file name arguments;
Otherwise, merely give a warning and proceed. */
const char *warning = (optind < argc ? _("Warning: ") : "");
int status = (optind < argc ? 0 : 1);
int status = (optind < argc ? 0 : EXIT_FAILURE);
error (status, errno,
_("%scannot read table of mounted filesystems"), warning);
}
@@ -946,5 +946,5 @@ main (int argc, char **argv)
show_all_entries ();
}
exit (exit_status);
exit (exit_status == 0 ? EXIT_SUCCESS : EXIT_FAILURE);
}