updated libopts version

diff --git a/modules/libopts b/modules/libopts
index bf4d5c0e8f148509e33ddb5a7484ad6f61f9fae4..c4fd3a58689969511685d6817c75cf39c732fe7a 160000 (submodule)
--- a/modules/libopts
+++ b/modules/libopts
@@ -1 +1 @@
-Subproject commit bf4d5c0e8f148509e33ddb5a7484ad6f61f9fae4
+Subproject commit c4fd3a58689969511685d6817c75cf39c732fe7a