Add Copyright/License notice to test files

test/arguments

@@ -1,4 +1,6 @@
 #!/bin/bash
+# Copyright 2023, project-repo and the cagebreak contributors
+# SPDX-License-Identifier: MIT
 
 testdir=$(mktemp -d)
 

test/build-w-o-warnings

@@ -1,4 +1,6 @@
 #! /bin/sh
+# Copyright 2023, project-repo and the cagebreak contributors
+# SPDX-License-Identifier: MIT
 
 RESULT=0
 

test/build-w-o-xwayland

@@ -1,4 +1,6 @@
 #! /bin/sh
+# Copyright 2023, project-repo and the cagebreak contributors
+# SPDX-License-Identifier: MIT
 
 RESULT=0
 

test/clang-format

@@ -1,4 +1,6 @@
 #! /bin/sh
+# Copyright 2023, project-repo and the cagebreak contributors
+# SPDX-License-Identifier: MIT
 
 readonly declared_deps="${@}"
 readonly deps="${declared_deps}"

test/environment-variables

@@ -1,4 +1,6 @@
 #!/bin/bash
+# Copyright 2023, project-repo and the cagebreak contributors
+# SPDX-License-Identifier: MIT
 
 testdir=$(mktemp -d)
 mkdir "${testdir}/cagebreak"

test/scan-build

@@ -1,4 +1,6 @@
 #!/bin/bash
+# Copyright 2023, project-repo and the cagebreak contributors
+# SPDX-License-Identifier: MIT
 
 RESULT=0
 

test/testing-configurations/-c-config

@@ -1,2 +1,4 @@
+# Copyright 2023, project-repo and the cagebreak contributors
+# SPDX-License-Identifier: MIT
 exec (echo "SUCCESS" > CONFIGPATH )
 quit

test/testing-configurations/config

@@ -1,2 +1,4 @@
+# Copyright 2023, project-repo and the cagebreak contributors
+# SPDX-License-Identifier: MIT
 exec (echo $CAGEBREAK_SOCKET > CONFIGPATH)
 quit

test/testing-configurations/env-var-config

@@ -1,2 +1,4 @@
+# Copyright 2023, project-repo and the cagebreak contributors
+# SPDX-License-Identifier: MIT
 exec (echo "SUCCESS" > CONFIGPATH )
 quit

test/testing-configurations/my-scan-build

@@ -1,3 +1,5 @@
 #!/bin/bash
+# Copyright 2023, project-repo and the cagebreak contributors
+# SPDX-License-Identifier: MIT
 
 scan-build --status-bugs "$@"