Docs: URLs for RFCs

[exim.git] / src / OS / unsupported / Makefile-HP-UX-9

diff --git a/src/OS/unsupported/Makefile-HP-UX-9 b/src/OS/unsupported/Makefile-HP-UX-9
index 15300094427b37f1522cda957ec5f78ed26a5d18..ad28d4fdb0c4168f9fbcd7fca26d144f5bdcffec 100644 (file)
--- a/src/OS/unsupported/Makefile-HP-UX-9
+++ b/src/OS/unsupported/Makefile-HP-UX-9
@@ -1,4 +1,5 @@
 # Exim: OS-specific make file for HP-UX 9
+# SPDX-License-Identifier: GPL-2.0-or-later
 
 CFLAGS=-O
 BASENAME_COMMAND=/bin/basename