Amend references to "OpenSSL license"

A small number of files contain references to the "OpenSSL license"
which has been deprecated and replaced by the "Apache License 2.0".
Amend the occurences.

Fixes #11649

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/11663)

apps/include/apps_ui.h

diff --git a/apps/include/apps_ui.h b/apps/include/apps_ui.h
index 55a6b51..8c6a481 100644
--- a/apps/include/apps_ui.h
+++ b/apps/include/apps_ui.h
@@ -1,7 +1,7 @@
 /*
  * Copyright 2018 The OpenSSL Project Authors. All Rights Reserved.
  *
- * Licensed under the OpenSSL license (the "License").  You may not use
+ * Licensed under the Apache License 2.0 (the "License").  You may not use
  * this file except in compliance with the License.  You can obtain a copy
  * in the file LICENSE in the source distribution or at
  * https://www.openssl.org/source/license.html

apps/include/fmt.h

diff --git a/apps/include/fmt.h b/apps/include/fmt.h
index 01acf86..ef18fc0 100644
--- a/apps/include/fmt.h
+++ b/apps/include/fmt.h
@@ -1,7 +1,7 @@
 /*
  * Copyright 2018 The OpenSSL Project Authors. All Rights Reserved.
  *
- * Licensed under the OpenSSL license (the "License").  You may not use
+ * Licensed under the Apache License 2.0 (the "License").  You may not use
  * this file except in compliance with the License.  You can obtain a copy
  * in the file LICENSE in the source distribution or at
  * https://www.openssl.org/source/license.html

apps/include/opt.h

diff --git a/apps/include/opt.h b/apps/include/opt.h
index 1bf4621..b4753dc 100644
--- a/apps/include/opt.h
+++ b/apps/include/opt.h
@@ -1,7 +1,7 @@
 /*
  * Copyright 2018-2020 The OpenSSL Project Authors. All Rights Reserved.
  *
- * Licensed under the OpenSSL license (the "License").  You may not use
+ * Licensed under the Apache License 2.0 (the "License").  You may not use
  * this file except in compliance with the License.  You can obtain a copy
  * in the file LICENSE in the source distribution or at
  * https://www.openssl.org/source/license.html

apps/kdf.c

diff --git a/apps/kdf.c b/apps/kdf.c
index 9a69682..8d11807 100644
--- a/apps/kdf.c
+++ b/apps/kdf.c
@@ -1,7 +1,7 @@
 /*
  * Copyright 2019-2020 The OpenSSL Project Authors. All Rights Reserved.
  *
- * Licensed under the OpenSSL license (the "License").  You may not use
+ * Licensed under the Apache License 2.0 (the "License").  You may not use
  * this file except in compliance with the License.  You can obtain a copy
  * in the file LICENSE in the source distribution or at
  * https://www.openssl.org/source/license.html

apps/lib/apps_ui.c

diff --git a/apps/lib/apps_ui.c b/apps/lib/apps_ui.c
index bcfe555..ae0f5f2 100644
--- a/apps/lib/apps_ui.c
+++ b/apps/lib/apps_ui.c
@@ -1,7 +1,7 @@
 /*
  * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
  *
- * Licensed under the OpenSSL license (the "License").  You may not use
+ * Licensed under the Apache License 2.0 (the "License").  You may not use
  * this file except in compliance with the License.  You can obtain a copy
  * in the file LICENSE in the source distribution or at
  * https://www.openssl.org/source/license.html

apps/lib/fmt.c

diff --git a/apps/lib/fmt.c b/apps/lib/fmt.c
index 5cb4c04..2cdd55e 100644
--- a/apps/lib/fmt.c
+++ b/apps/lib/fmt.c
@@ -1,7 +1,7 @@
 /*
  * Copyright 2018 The OpenSSL Project Authors. All Rights Reserved.
  *
- * Licensed under the OpenSSL license (the "License").  You may not use
+ * Licensed under the Apache License 2.0 (the "License").  You may not use
  * this file except in compliance with the License.  You can obtain a copy
  * in the file LICENSE in the source distribution or at
  * https://www.openssl.org/source/license.html

apps/mac.c

diff --git a/apps/mac.c b/apps/mac.c
index 07a6e91..30f0daa 100644
--- a/apps/mac.c
+++ b/apps/mac.c
@@ -1,7 +1,7 @@
 /*
  * Copyright 2018-2020 The OpenSSL Project Authors. All Rights Reserved.
  *
- * Licensed under the OpenSSL license (the "License").  You may not use
+ * Licensed under the Apache License 2.0 (the "License").  You may not use
  * this file except in compliance with the License.  You can obtain a copy
  * in the file LICENSE in the source distribution or at
  * https://www.openssl.org/source/license.html