Merge bitcoin/bitcoin#23912: Insert and bump copyright headers

1362d6173f863428de17c4017f4e3bb6883b0be8 scripted-diff: Insert missed copyright headers (Hennadii Stepanov)
f47dda2c58b5d8d623e0e7ff4e74bc352dfa83d7 scripted-diff: Bump copyright headers (Hennadii Stepanov)
c29105efdc3daac0e8c43138f7c0a50535556455 script: Fix copyright_header.py (Hennadii Stepanov)

Pull request description:

  This PR is an alternative to #23903.

  It bumps the existing copyright headers as we did every year, and adds the missed copyright headers.

  A small fix has been applied to the `copyright_header.py` in order to prevent such weird bumping as `2021` --> `2021-2017`.

ACKs for top commit:
  MarcoFalke:
    ACK 1362d6173f863428de17c4017f4e3bb6883b0be8

Tree-SHA512: 204d970fe8c51546b26b8f03fe4297db8a9bef5101df851540b7b9eddbd3a09677ee81fdd882c60937d732407f42c9883165bd978272200cff8f90190f075905

10 files changed, 12 insertions, 9 deletions

diff --git a/test/functional/feature_bind_extra.py b/test/functional/feature_bind_extra.py
index af26f94033..6802da8d48 100755
--- a/test/functional/feature_bind_extra.py
+++ b/test/functional/feature_bind_extra.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2014-2020 The Bitcoin Core developers
+# Copyright (c) 2014-2021 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """
diff --git a/test/functional/p2p_add_connections.py b/test/functional/p2p_add_connections.py
index d919ed7bd3..f4462673f2 100755
--- a/test/functional/p2p_add_connections.py
+++ b/test/functional/p2p_add_connections.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2020 The Bitcoin Core developers
+# Copyright (c) 2020-2021 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test add_outbound_p2p_connection test framework functionality"""
diff --git a/test/functional/p2p_timeouts.py b/test/functional/p2p_timeouts.py
index 48c9b1b56a..f0abbc7d8b 100755
--- a/test/functional/p2p_timeouts.py
+++ b/test/functional/p2p_timeouts.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2016-2020 The Bitcoin Core developers
+# Copyright (c) 2016-2021 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test various net timeouts.
diff --git a/test/functional/rpc_generate.py b/test/functional/rpc_generate.py
index ac44f0b7f7..47d7814da3 100755
--- a/test/functional/rpc_generate.py
+++ b/test/functional/rpc_generate.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2020 The Bitcoin Core developers
+# Copyright (c) 2020-2021 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test generate RPC."""
diff --git a/test/functional/rpc_getblockfrompeer.py b/test/functional/rpc_getblockfrompeer.py
index e841cba70e..effcebe854 100755
--- a/test/functional/rpc_getblockfrompeer.py
+++ b/test/functional/rpc_getblockfrompeer.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2020 The Bitcoin Core developers
+# Copyright (c) 2020-2021 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test the getblockfrompeer RPC."""
diff --git a/test/lint/git-subtree-check.sh b/test/lint/git-subtree-check.sh
index cdaa5752ac..83816bb242 100755
--- a/test/lint/git-subtree-check.sh
+++ b/test/lint/git-subtree-check.sh
@@ -1,5 +1,5 @@
 #!/bin/sh
-# Copyright (c) 2015-2020 The Bitcoin Core developers
+# Copyright (c) 2015-2021 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
diff --git a/test/lint/lint-files.sh b/test/lint/lint-files.sh
index f9ede4bc68..86d7fc724a 100755
--- a/test/lint/lint-files.sh
+++ b/test/lint/lint-files.sh
@@ -1,4 +1,7 @@
 #!/usr/bin/env bash
+# Copyright (c) 2021 The Bitcoin Core developers
+# Distributed under the MIT software license, see the accompanying
+# file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 export LC_ALL=C
 
diff --git a/test/lint/lint-git-commit-check.sh b/test/lint/lint-git-commit-check.sh
index d1ab72658b..f77373ed00 100755
--- a/test/lint/lint-git-commit-check.sh
+++ b/test/lint/lint-git-commit-check.sh
@@ -1,5 +1,5 @@
 #!/usr/bin/env bash
-# Copyright (c) 2020 The Bitcoin Core developers
+# Copyright (c) 2020-2021 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 #
diff --git a/test/lint/lint-include-guards.sh b/test/lint/lint-include-guards.sh
index 23f53f027e..f14218aa74 100755
--- a/test/lint/lint-include-guards.sh
+++ b/test/lint/lint-include-guards.sh
@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 #
-# Copyright (c) 2018-2020 The Bitcoin Core developers
+# Copyright (c) 2018-2021 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 #
diff --git a/test/lint/lint-shell-locale.sh b/test/lint/lint-shell-locale.sh
index bd6b6ce05c..4c6b8a57e6 100755
--- a/test/lint/lint-shell-locale.sh
+++ b/test/lint/lint-shell-locale.sh
@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 #
-# Copyright (c) 2018 The Bitcoin Core developers
+# Copyright (c) 2018-2020 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 #