Update m4.

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

diff --git a/m4 b/m4
index a68af87..1fa0b45 160000 (submodule)
--- a/m4
+++ b/m4
@@ -1 +1 @@
-Subproject commit a68af871a42a363953e3ff78feff378787ad6ddd
+Subproject commit 1fa0b45a8141955801938f967f1d1dca1b042c17