(main): Check for trailing ", " before trying to delete it.

diff --git a/lib-src/b2m.c b/lib-src/b2m.c
index 416db6385ffb51f78ce75b4bc872aae40621da85..526d173acb66ede1504b3f567a8b48bf7e2cc3d8 100644 (file)
--- a/lib-src/b2m.c
+++ b/lib-src/b2m.c
@@ -131,7 +131,9 @@ main (argc, argv)
              while (p = strtok (NULL, " ,\r\n\t"))
                labels = concat (labels, p, ", ");
 
-             labels[strlen (labels) - 2] = '\0';
+             p = &labels[strlen (labels) - 2];
+             if (*p == ',')
+               *p = '\0';
              printing = header = FALSE;
              labels_saved = TRUE;
              continue;