add documentation reference to the service file

tftp.service

@@ -1,6 +1,7 @@
 [Unit]
 Description=Tftp Server
 Requires=tftp.socket
+Documentation=man:in.tftpd
 
 [Service]
 ExecStart=/usr/sbin/in.tftpd -s /var/lib/tftpboot

tftp.spec

@@ -4,7 +4,7 @@
 Summary: The client for the Trivial File Transfer Protocol (TFTP)
 Name: tftp
 Version: 5.2
-Release: 12%{?dist}
+Release: 13%{?dist}
 License: BSD
 Group: Applications/Internet
 URL: http://www.kernel.org/pub/software/network/tftp/
@@ -102,6 +102,9 @@ rm -rf ${RPM_BUILD_ROOT}
 %{_unitdir}/*
 
 %changelog
+* Mon Feb 24 2014 Jan Synáček <jsynacek@redhat.com> - 5.2-13
+- add documentation reference to the service file
+
 * Wed Feb 19 2014 Jan Synáček <jsynacek@redhat.com> - 5.2-12
 - start socket as well when starting the service