*: make GNU licensing statement forms more regular

This change retains "or later" state! No licensing _changes_ here,
only form is adjusted (article, space between "GPL" and "v2" and so on).

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

shell/Kbuild.src

@@ -2,7 +2,7 @@
 #
 # Copyright (C) 1999-2005 by Erik Andersen <andersen@codepoet.org>
 #
-# Licensed under the GPL v2, see the file LICENSE in this tarball.
+# Licensed under GPLv2, see file LICENSE in this source tree.
 
 lib-y:=
 

shell/ash.c

@@ -13,7 +13,7 @@
  * Copyright (c) 1997-2005 Herbert Xu <herbert@gondor.apana.org.au>
  * was re-ported from NetBSD and debianized.
  *
- * Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
+ * Licensed under GPLv2 or later, see file LICENSE in this source tree.
  */
 
 /*

shell/ash_ptr_hack.c

@@ -2,7 +2,7 @@
 /*
  * Copyright (C) 2008 by Denys Vlasenko <vda.linux@googlemail.com>
  *
- * Licensed under GPLv2, see file LICENSE in this tarball for details.
+ * Licensed under GPLv2, see file LICENSE in this source tree.
  */
 
 struct globals_misc;

shell/bbsh.c

@@ -4,7 +4,7 @@
  *
  * Copyright 2006 Rob Landley <rob@landley.net>
  *
- * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
+ * Licensed under GPLv2 or later, see file LICENSE in this source tree.
  */
 
 // A section of code that gets repeatedly or conditionally executed is stored

shell/cttyhack.c

@@ -1,8 +1,8 @@
 /* vi: set sw=4 ts=4: */
 /*
- * Licensed under GPLv2
- *
  * Copyright (c) 2007 Denys Vlasenko <vda.linux@googlemail.com>
+ *
+ * Licensed under GPLv2, see file LICENSE in this source tree.
  */
 #include "libbb.h"
 

shell/hush.c

@@ -79,7 +79,7 @@
  *              $ "export" i=`echo 'aaa  bbb'`; echo "$i"
  *              aaa
  *
- * Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
+ * Licensed under GPLv2 or later, see file LICENSE in this source tree.
  */
 #include "busybox.h"  /* for APPLET_IS_NOFORK/NOEXEC */
 #include <malloc.h>   /* for malloc_trim */

shell/match.c

@@ -4,7 +4,7 @@
  * This code is derived from software contributed to Berkeley by
  * Kenneth Almquist.
  *
- * Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
+ * Licensed under GPLv2 or later, see file LICENSE in this source tree.
  *
  * Copyright (c) 1989, 1991, 1993, 1994
  *      The Regents of the University of California.  All rights reserved.

shell/math.c

@@ -23,7 +23,7 @@
  * rewrote arith (see notes to this), added locale support,
  * rewrote dynamic variables.
  *
- * Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
+ * Licensed under GPLv2 or later, see file LICENSE in this source tree.
  */
 /* Copyright (c) 2001 Aaron Lehmann <aaronl@vitelus.com>
 

shell/random.c

@@ -4,7 +4,7 @@
  *
  * Copyright (C) 2009 Denys Vlasenko
  *
- * Licensed under GPLv2, see file LICENSE in this tarball for details.
+ * Licensed under GPLv2, see file LICENSE in this source tree.
  */
 #include "libbb.h"
 #include "random.h"

shell/random.h

@@ -4,7 +4,7 @@
  *
  * Copyright (C) 2009 Denys Vlasenko
  *
- * Licensed under GPLv2, see file LICENSE in this tarball for details.
+ * Licensed under GPLv2, see file LICENSE in this source tree.
  */
 #ifndef SHELL_RANDOM_H
 #define SHELL_RANDOM_H 1

shell/shell_common.c

@@ -14,7 +14,7 @@
  * Copyright (c) 2010 Denys Vlasenko
  * Split from ash.c
  *
- * Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
+ * Licensed under GPLv2 or later, see file LICENSE in this source tree.
  */
 #include "libbb.h"
 #include "shell_common.h"

shell/shell_common.h

@@ -14,7 +14,7 @@
  * Copyright (c) 2010 Denys Vlasenko
  * Split from ash.c
  *
- * Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
+ * Licensed under GPLv2 or later, see file LICENSE in this source tree.
  */
 #ifndef SHELL_COMMON_H
 #define SHELL_COMMON_H 1