Improve script

Add / as allowed character in the regex which checks the copyright statement. This is needed since we have cases with two institutes and two cities in the copyright statement which are separated by a /.

scripts/check-licence-header.sh

@@ -15,7 +15,7 @@ licenceHeaderCheck () {
 		FILE_CODE="1"
 	fi
 
-	head -n 1 $1 | grep -q '\/\* Copyright (C) [0-9-]* [a-zA-Z -]*, [a-zA-Z]*'
+	head -n 1 $1 | grep -q '\/\* Copyright (C) [0-9-]* [a-zA-Z -/]*, [a-zA-Z/]*'
 	if [ $? -ne 0 ]; then
 		echo "[ERROR] $1; line 1 has syntax errors in its licence header."
 		((RETURN_CODE++))