[PATCH] treewide: more portable bash shebangs

[Jörg Thalheim]

While /usr/bin/env is more or less available on all POSIX systems
/bin/bash might not be. This is particular the case on NixOS and the BSD
family (/usr/local/bin/bash). Downstream packagers would often rewrite
those shebangs back automatically as they can rely on absolute paths
but having portable shebangs in the repository helps to run the code
without any further modification.

Signed-off-by: Jörg Thalheim <joerg at thalheim.io>
---
 contrib/examples/dns-hatchet/apply.sh                     | 2 +-
 contrib/examples/extract-handshakes/extract-handshakes.sh | 2 +-
 contrib/examples/json/wg-json                             | 2 +-
 contrib/examples/ncat-client-server/client.sh             | 2 +-
 contrib/examples/ncat-client-server/server.sh             | 2 +-
 contrib/examples/reresolve-dns/reresolve-dns.sh           | 2 +-
 contrib/examples/synergy/synergy-client.sh                | 2 +-
 contrib/examples/synergy/synergy-server.sh                | 2 +-
 contrib/kernel-tree/create-patch.sh                       | 2 +-
 contrib/kernel-tree/filter-compat-defines.sh              | 2 +-
 contrib/kernel-tree/jury-rig.sh                           | 2 +-
 src/tests/netns.sh                                        | 2 +-
 src/tools/wg-quick/linux.bash                             | 2 +-
 13 files changed, 13 insertions(+), 13 deletions(-)

diff --git a/contrib/examples/dns-hatchet/apply.sh b/contrib/examples/dns-hatchet/apply.sh
index 2bf002d..fb4ca34 100755
--- a/contrib/examples/dns-hatchet/apply.sh
+++ b/contrib/examples/dns-hatchet/apply.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 # SPDX-License-Identifier: GPL-2.0
 #
 # Copyright (C) 2015-2019 Jason A. Donenfeld <Jason at zx2c4.com>. All Rights Reserved.
diff --git a/contrib/examples/extract-handshakes/extract-handshakes.sh b/contrib/examples/extract-handshakes/extract-handshakes.sh
index f794ffe..289907e 100755
--- a/contrib/examples/extract-handshakes/extract-handshakes.sh
+++ b/contrib/examples/extract-handshakes/extract-handshakes.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 # SPDX-License-Identifier: GPL-2.0
 #
 # Copyright (C) 2015-2019 Jason A. Donenfeld <Jason at zx2c4.com>. All Rights Reserved.
diff --git a/contrib/examples/json/wg-json b/contrib/examples/json/wg-json
index 8b35521..f4d86a1 100755
--- a/contrib/examples/json/wg-json
+++ b/contrib/examples/json/wg-json
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 # SPDX-License-Identifier: GPL-2.0
 #
 # Copyright (C) 2015-2019 Jason A. Donenfeld <Jason at zx2c4.com>. All Rights Reserved.
diff --git a/contrib/examples/ncat-client-server/client.sh b/contrib/examples/ncat-client-server/client.sh
index dd0f575..1a5f3ed 100755
--- a/contrib/examples/ncat-client-server/client.sh
+++ b/contrib/examples/ncat-client-server/client.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 # SPDX-License-Identifier: GPL-2.0
 #
 # Copyright (C) 2015-2019 Jason A. Donenfeld <Jason at zx2c4.com>. All Rights Reserved.
diff --git a/contrib/examples/ncat-client-server/server.sh b/contrib/examples/ncat-client-server/server.sh
index 38a69e1..e710661 100755
--- a/contrib/examples/ncat-client-server/server.sh
+++ b/contrib/examples/ncat-client-server/server.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 # SPDX-License-Identifier: GPL-2.0
 #
 # Copyright (C) 2015-2019 Jason A. Donenfeld <Jason at zx2c4.com>. All Rights Reserved.
diff --git a/contrib/examples/reresolve-dns/reresolve-dns.sh b/contrib/examples/reresolve-dns/reresolve-dns.sh
index e579f86..28ee389 100755
--- a/contrib/examples/reresolve-dns/reresolve-dns.sh
+++ b/contrib/examples/reresolve-dns/reresolve-dns.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 # SPDX-License-Identifier: GPL-2.0
 #
 # Copyright (C) 2015-2019 Jason A. Donenfeld <Jason at zx2c4.com>. All Rights Reserved.
diff --git a/contrib/examples/synergy/synergy-client.sh b/contrib/examples/synergy/synergy-client.sh
index de358ef..ecaf337 100755
--- a/contrib/examples/synergy/synergy-client.sh
+++ b/contrib/examples/synergy/synergy-client.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 # SPDX-License-Identifier: GPL-2.0
 #
 # Copyright (C) 2015-2019 Jason A. Donenfeld <Jason at zx2c4.com>. All Rights Reserved.
diff --git a/contrib/examples/synergy/synergy-server.sh b/contrib/examples/synergy/synergy-server.sh
index e04b1f4..0404996 100755
--- a/contrib/examples/synergy/synergy-server.sh
+++ b/contrib/examples/synergy/synergy-server.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 # SPDX-License-Identifier: GPL-2.0
 #
 # Copyright (C) 2015-2019 Jason A. Donenfeld <Jason at zx2c4.com>. All Rights Reserved.
diff --git a/contrib/kernel-tree/create-patch.sh b/contrib/kernel-tree/create-patch.sh
index 4a4ad98..cc7e35f 100755
--- a/contrib/kernel-tree/create-patch.sh
+++ b/contrib/kernel-tree/create-patch.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 # SPDX-License-Identifier: GPL-2.0
 #
 # Copyright (C) 2015-2019 Jason A. Donenfeld <Jason at zx2c4.com>. All Rights Reserved.
diff --git a/contrib/kernel-tree/filter-compat-defines.sh b/contrib/kernel-tree/filter-compat-defines.sh
index d083bf5..b1747b5 100755
--- a/contrib/kernel-tree/filter-compat-defines.sh
+++ b/contrib/kernel-tree/filter-compat-defines.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 # SPDX-License-Identifier: GPL-2.0
 #
 # Copyright (C) 2015-2019 Jason A. Donenfeld <Jason at zx2c4.com>. All Rights Reserved.
diff --git a/contrib/kernel-tree/jury-rig.sh b/contrib/kernel-tree/jury-rig.sh
index 2b16f88..021830a 100755
--- a/contrib/kernel-tree/jury-rig.sh
+++ b/contrib/kernel-tree/jury-rig.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 # SPDX-License-Identifier: GPL-2.0
 #
 # Copyright (C) 2015-2019 Jason A. Donenfeld <Jason at zx2c4.com>. All Rights Reserved.
diff --git a/src/tests/netns.sh b/src/tests/netns.sh
index 7cbbfce..7e0e166 100755
--- a/src/tests/netns.sh
+++ b/src/tests/netns.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 # SPDX-License-Identifier: GPL-2.0
 #
 # Copyright (C) 2015-2019 Jason A. Donenfeld <Jason at zx2c4.com>. All Rights Reserved.
diff --git a/src/tools/wg-quick/linux.bash b/src/tools/wg-quick/linux.bash
index 2f36dee..6a101f3 100755
--- a/src/tools/wg-quick/linux.bash
+++ b/src/tools/wg-quick/linux.bash
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 # SPDX-License-Identifier: GPL-2.0
 #
 # Copyright (C) 2015-2019 Jason A. Donenfeld <Jason at zx2c4.com>. All Rights Reserved.
-- 
2.22.0