Add SPDX license identifiers to all source files, BSD-3 & GPL-2

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>

src/klogd.c

@@ -1,4 +1,6 @@
-/*
+/*-
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ *
  * klogd.c - main program for Linux kernel log daemon.
  * Copyright (c) 1995  Dr. G.W. Wettstein <greg@wind.rmcc.com>
  *

src/klogd.h

@@ -1,4 +1,6 @@
-/*
+/*-
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ *
  * klogd.h - main header file for Linux kernel log daemon.
  * Copyright (c) 1995  Dr. G.W. Wettstein <greg@wind.rmcc.com>
  *

src/ksym.c

@@ -1,4 +1,6 @@
-/*
+/*-
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ *
  * ksym.c - functions for kernel address->symbol translation
  * Copyright (c) 1995, 1996  Dr. G.W. Wettstein <greg@wind.rmcc.com>
  * Copyright (c) 1996 Enjellic Systems Development

src/ksym_mod.c

@@ -1,4 +1,6 @@
-/*
+/*-
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ *
  * ksym_mod.c - functions for building symbol lookup tables for klogd
  * Copyright (c) 1995, 1996  Dr. G.W. Wettstein <greg@wind.rmcc.com>
  * Copyright (c) 1996 Enjellic Systems Development

src/ksyms.h

@@ -1,4 +1,6 @@
-/*
+/*-
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ *
  * ksym.h - Definitions for symbol table utilities.
  * Copyright (c) 1995, 1996  Dr. G.W. Wettstein <greg@wind.rmcc.com>
  * Copyright (c) 1996 Enjellic Systems Development

src/module.h

@@ -1,4 +1,6 @@
-/*
+/*-
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ *
  * module.h - Miscellaneous module definitions
  * Copyright (c) 1996 Richard Henderson <rth@tamu.edu>
  * Copyright (c) 2004-7 Martin Schulze <joey@infodrom.org>

src/oops.c

@@ -1,4 +1,6 @@
-/*
+/*-
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ *
  * oops.c - Dummy loadable module for testing klogd.
  * Copyright (c) 2007  Martin Schulze <joey@infodrom.org>
  *

src/pidfile.c

@@ -1,4 +1,6 @@
-/*
+/*-
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ *
  * pidfile.c - interact with pidfiles
  * Copyright (c) 1995  Martin Schulze <Martin.Schulze@Linux.DE>
  *

src/pidfile.h

@@ -1,4 +1,6 @@
-/*
+/*-
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ *
  * pidfile.h - interact with pidfiles
  * Copyright (c) 1995  Martin Schulze <Martin.Schulze@Linux.DE>
  *

src/syslog.c

@@ -1,4 +1,6 @@
-/*
+/*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1983, 1988, 1993
  *	The Regents of the University of California.  All rights reserved.
  *

src/syslogd.c

@@ -1,4 +1,6 @@
-/*
+/*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1983, 1988, 1993
  *	The Regents of the University of California.  All rights reserved.
  *