Update m4.

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

diff --git a/m4 b/m4
index 0b7662b..516c9f9 160000 (submodule)
--- a/m4
+++ b/m4
@@ -1 +1 @@
-Subproject commit 0b7662be4e6c57b66352317ab7f097117888993a
+Subproject commit 516c9f985661da8ae9492b3b864c9929f2480508