Add ChangeLog files, so that update_version_git can then fill those in.
--- /dev/null
+\f
+Copyright (C) 2020 Free Software Foundation, Inc.
+
+Copying and distribution of this file, with or without modification,
+are permitted in any medium without royalty provided the copyright
+notice and this notice are preserved.
--- /dev/null
+\f
+Copyright (C) 2020 Free Software Foundation, Inc.
+
+Copying and distribution of this file, with or without modification,
+are permitted in any medium without royalty provided the copyright
+notice and this notice are preserved.