change: write ignore file only needed

diff --git a/discspan.c b/discspan.c
index 33bf56db3b60f0e81d2b50c5122496d8d18d015f..2252a39f53dbae190dc1538a0903ee6176ef882a 100644 (file)
--- a/discspan.c
+++ b/discspan.c
@@ -103,7 +103,8 @@ int main(int argc, char *argv[])
 
        medium_t disc;
        disc = ignore(&srcdata);
-       write_output_file("ignore", disc);
+       if (disc.length > 0)
+               write_output_file("ignore", disc);
        free(disc.filearray);
 
        char outname[strlen(output) + 3];