diff --git a/acinclude.m4 b/acinclude.m4
index 94dc6f6b8d..40bf841b22 100644
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -19,7 +19,7 @@
 # KIND, either express or implied.
 #
 # $Id$
-###########################################################################
+#***************************************************************************
 
 
 dnl CURL_CHECK_COMPILER_HALT_ON_ERROR
diff --git a/configure.ac b/configure.ac
index ff2f386ee5..77e7ce58c4 100644
--- a/configure.ac
+++ b/configure.ac
@@ -19,7 +19,7 @@
 # KIND, either express or implied.
 #
 # $Id$
-###########################################################################
+#***************************************************************************
 dnl Process this file with autoconf to produce a configure script.
 
 AC_PREREQ(2.57)
diff --git a/m4/reentrant.m4 b/m4/reentrant.m4
index 2e2033a2ac..38569500a3 100644
--- a/m4/reentrant.m4
+++ b/m4/reentrant.m4
@@ -19,7 +19,7 @@
 # KIND, either express or implied.
 #
 # $Id$
-###########################################################################
+#***************************************************************************
 
 
 dnl CHECK_NEED_REENTRANT_STRERROR_R