SC-45750 Migrate to dateless license headers (#229)

test/assertFileExists

@@ -1,5 +1,23 @@
 #!/usr/bin/env bash
 
+# SonarQube Scan Action
+# Copyright (C) SonarSource Sàrl
+# mailto:contact AT sonarsource DOT com
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 3 of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
 set -eou pipefail
 
 error() { echo -e "\\e[31m✗ $*\\e[0m"; }
@@ -7,4 +25,4 @@ error() { echo -e "\\e[31m✗ $*\\e[0m"; }
 if [ ! -f "$1" ]; then
   error "File '$1' not found"
   exit 1
-fi
+fi