Update to latest m4 master.

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

diff --git a/m4 b/m4
index 9763824..b076b76 160000 (submodule)
--- a/m4
+++ b/m4
@@ -1 +1 @@
-Subproject commit 9763824ebc2240e71a2eff5bb5b3775ab56d0508
+Subproject commit b076b768162950579fb9831b1f8dd8be5fdc3154