[m4-common] Update autoconf-archive

[Sébastien Wilmet <swilmet src gnome org>]

commit 355c92af55ac8bb2236b91ba0c43f48599044360
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Mon Mar 20 19:07:35 2017 +0100

    Update autoconf-archive
    
    To have a fix for AX_CODE_COVERAGE, at least.

 autoconf-archive |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/autoconf-archive b/autoconf-archive
index b59fda6..e67ffbc 160000
--- a/autoconf-archive
+++ b/autoconf-archive
@@ -1 +1 @@
-Subproject commit b59fda6fb328dcdf01402e5cd45311c0f93cd259
+Subproject commit e67ffbceb156a2c33f7c689ff12cef89e8086242