minor tweak to exit code handling

diff --git a/src/flac/main.c b/src/flac/main.c
index 782224b..4bd64ff 100644 (file)
--- a/src/flac/main.c
+++ b/src/flac/main.c
@@ -504,7 +504,8 @@ int usage(const char *message, ...)
        fprintf(stderr, "  -fu : unsigned samples (default is signed)\n");
        fprintf(stderr, "  -fr : force to raw format (even if filename ends in .wav)\n");
        fprintf(stderr, "  -fw : force to RIFF WAVE\n");
-       return 1;
+
+       return message? 1 : 0;
 }
 
 int encode_file(const char *infilename, const char *forced_outfilename)