Update m4

[idzebra-moved-to-github.git] / m4

diff --git a/m4 b/m4
index f560129..a68af87 160000 (submodule)
--- a/m4
+++ b/m4
@@ -1 +1 @@
-Subproject commit f5601296c571639de99e08ad41493c6d5be06a9a
+Subproject commit a68af871a42a363953e3ff78feff378787ad6ddd