Use SPDX identifiers

SPDX identifiers are simpler, and reduce the amount of cruft we have in
code files.  They are recommended by linux foundation, and therefore we
should do as they allow.

This patchset does not intend to modify any intent on any existing
copyrights or licenses, only to standardize their inclusion.

[1] https://www.linuxfoundation.org/blog/blog/copyright-notices-in-open-source-software-projects

Change-Id: I935c7c0156caa78fc368c929cebd0f068031e830
Signed-off-by: Ed Tanous <etanous@nvidia.com>
diff --git a/src/boost_asio.cpp b/src/boost_asio.cpp
index 9e91074..477b9e4 100644
--- a/src/boost_asio.cpp
+++ b/src/boost_asio.cpp
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-FileCopyrightText: Copyright OpenBMC Authors
 #include "logging.hpp"
 
 #include <boost/asio/impl/src.hpp>
diff --git a/src/boost_asio_ssl.cpp b/src/boost_asio_ssl.cpp
index d98d7b5..c7adf33 100644
--- a/src/boost_asio_ssl.cpp
+++ b/src/boost_asio_ssl.cpp
@@ -1 +1,3 @@
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-FileCopyrightText: Copyright OpenBMC Authors
 #include <boost/asio/ssl/impl/src.hpp>
diff --git a/src/boost_beast.cpp b/src/boost_beast.cpp
index 01b7c8f..3722700 100644
--- a/src/boost_beast.cpp
+++ b/src/boost_beast.cpp
@@ -1 +1,3 @@
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-FileCopyrightText: Copyright OpenBMC Authors
 #include <boost/beast/src.hpp>
diff --git a/src/dbus_singleton.cpp b/src/dbus_singleton.cpp
index 0c937d1..a2bde4d 100644
--- a/src/dbus_singleton.cpp
+++ b/src/dbus_singleton.cpp
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-FileCopyrightText: Copyright OpenBMC Authors
 #include "dbus_singleton.hpp"
 
 #include <sdbusplus/asio/connection.hpp>
diff --git a/src/json_html_serializer.cpp b/src/json_html_serializer.cpp
index d462f5e..1e1f7a7 100644
--- a/src/json_html_serializer.cpp
+++ b/src/json_html_serializer.cpp
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-FileCopyrightText: Copyright OpenBMC Authors
 #include "json_html_serializer.hpp"
 
 #include "http_response.hpp"
diff --git a/src/ossl_random.cpp b/src/ossl_random.cpp
index 234db3c..e22ed7f 100644
--- a/src/ossl_random.cpp
+++ b/src/ossl_random.cpp
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-FileCopyrightText: Copyright OpenBMC Authors
 #include "ossl_random.hpp"
 
 #include "logging.hpp"
diff --git a/src/ssl_key_handler.cpp b/src/ssl_key_handler.cpp
index c82922c..b966b58 100644
--- a/src/ssl_key_handler.cpp
+++ b/src/ssl_key_handler.cpp
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-FileCopyrightText: Copyright OpenBMC Authors
 #include "ssl_key_handler.hpp"
 
 #include "bmcweb_config.h"
diff --git a/src/webserver_cli.cpp b/src/webserver_cli.cpp
index f6642c7..58fbacb 100644
--- a/src/webserver_cli.cpp
+++ b/src/webserver_cli.cpp
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-FileCopyrightText: Copyright OpenBMC Authors
 #include "boost_formatters.hpp"
 #include "logging.hpp"
 
diff --git a/src/webserver_main.cpp b/src/webserver_main.cpp
index 99b7824..51d6576 100644
--- a/src/webserver_main.cpp
+++ b/src/webserver_main.cpp
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-FileCopyrightText: Copyright OpenBMC Authors
 #include "webserver_run.hpp"
 
 int main(int /*argc*/, char** /*argv*/) noexcept(false)
diff --git a/src/webserver_run.cpp b/src/webserver_run.cpp
index 93bf6b5..557bbe2 100644
--- a/src/webserver_run.cpp
+++ b/src/webserver_run.cpp
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-FileCopyrightText: Copyright OpenBMC Authors
 #include "webserver_run.hpp"
 
 #include "bmcweb_config.h"