Merge #13510: Scripts and tools: Obsolete #!/bin/bash shebang

000000035b Obsolete #!/bin/bash shebang (DesWurstes)

Pull request description:

  > `#!/bin/bash` assumes it is always installed to `/bin/` which can cause issues
  > `#!/usr/bin/env bash` searches the user's `PATH` to find the `bash` binary

  Details: https://github.com/dylanaraps/pure-bash-bible#obsolete-syntax

  I'm open to comments: Should I also fix `#!/bin/sh`?

Tree-SHA512: b47bb4828116aa119f1899c68fee081270d51a898535490b9c616bf0f3660ad953f29c361eafc759bc64cdd54ee6eeecb2d79e9fdb5291a996a515c719805476

test/lint/lint-all.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Copyright (c) 2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying

test/lint/lint-filenames.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Copyright (c) 2018 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying

test/lint/lint-include-guards.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Copyright (c) 2018 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying

test/lint/lint-includes.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Copyright (c) 2018 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying

test/lint/lint-locale-dependence.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 export LC_ALL=C
 KNOWN_VIOLATIONS=(

test/lint/lint-logs.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Copyright (c) 2018 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying

test/lint/lint-python-shebang.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 # Shebang must use python3 (not python or python2)
 
 export LC_ALL=C

test/lint/lint-python-utf8-encoding.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Copyright (c) 2018 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying

test/lint/lint-shell-locale.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Copyright (c) 2018 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying

test/lint/lint-shell.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Copyright (c) 2018 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying

test/lint/lint-tests.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Copyright (c) 2018 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying

test/lint/lint-whitespace.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Copyright (c) 2017 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying