Update m4 due to different msg WRT Boost system

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

diff --git a/m4 b/m4
index 4f6aa8a..9582607 160000 (submodule)
--- a/m4
+++ b/m4
@@ -1 +1 @@
-Subproject commit 4f6aa8a41e50ad350463ee2418c28a5b3c7279ff
+Subproject commit 9582607a1a4c2c45046c16c1e6a1b9ae204e2a66