Bug 13673: (QA followup) Add license

Signed-off-by: Tomas Cohen Arazi <tomascohen@gmail.com>

t/db_dependent/Barcodes.t

@@ -1,6 +1,22 @@
 #!/usr/bin/perl
 
+# This file is part of Koha.
+#
+# Koha is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# Koha 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 General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with Koha; if not, see <http://www.gnu.org/licenses>.
+
 use Modern::Perl;
+
 use Test::More tests => 73;
 use Test::Warn;