:art: Sndfile: choose output filename

diff --git a/plug b/plug
index 3a3f9322b4b332c81dde084a858fbd3754c1e713..d298706d9e939839bf7d20bf65cbac5606b245b4 160000 (submodule)
--- a/plug
+++ b/plug
@@ -1 +1 @@
-Subproject commit 3a3f9322b4b332c81dde084a858fbd3754c1e713
+Subproject commit d298706d9e939839bf7d20bf65cbac5606b245b4