Add SPDX-License-Identifier headers

Add SPDX-License-Identifier headers to all substantial source files.
Collapse copyright years.  Add some Emacs configuration for files
where the copyright notice is at the end.  Add a test that every
file has SPDX-License-Identifier.

1 files changed, 1 insertions, 1 deletions

diff --git a/perl/t/verifier/ldap-attr.t b/perl/t/verifier/ldap-attr.t
index 3665edb..321822d 100755
--- a/perl/t/verifier/ldap-attr.t
+++ b/perl/t/verifier/ldap-attr.t
@@ -10,7 +10,7 @@
 # Copyright 2012-2014
 #     The Board of Trustees of the Leland Stanford Junior University
 #
-# See LICENSE for licensing terms.
+# SPDX-License-Identifier: MIT
 
 use strict;
 use warnings;