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-rw-r--r--src/tsort.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/tsort.c b/src/tsort.c
index a66d37ba4..c6b7855a4 100644
--- a/src/tsort.c
+++ b/src/tsort.c
@@ -560,7 +560,7 @@ main (int argc, char **argv)
exit_status = 0;
parse_long_options (argc, argv, PROGRAM_NAME, PACKAGE, VERSION,
- AUTHORS, usage);
+ usage, AUTHORS, NULL);
while ((opt = getopt_long (argc, argv, "", long_options, NULL)) != -1)
switch (opt)