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-rw-r--r--helper/main.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/helper/main.c b/helper/main.c
index 4afcb24..f194008 100644
--- a/helper/main.c
+++ b/helper/main.c
@@ -51,9 +51,10 @@ static const struct option long_options[] = {
};
static void
-usage (const char *progname)
+usage (FILE *f, const char *progname)
{
- printf ("%s: build the supermin appliance on the fly\n"
+ fprintf (f,
+ "%s: build the supermin appliance on the fly\n"
"\n"
"Usage:\n"
" %s [-options] inputs [...] host_cpu kernel initrd\n"
@@ -99,7 +100,7 @@ main (int argc, char *argv[])
switch (c) {
case HELP_OPTION:
- usage (argv[0]);
+ usage (stdout, argv[0]);
exit (EXIT_SUCCESS);
case 'f':
@@ -119,7 +120,7 @@ main (int argc, char *argv[])
exit (EXIT_SUCCESS);
default:
- usage (argv[0]);
+ usage (stderr, argv[0]);
exit (EXIT_FAILURE);
}
}