-check_licenses [ 'perl' ], [ qw/Artistic GPL-2/ ], 'perl';
-check_licenses [ qw/perl gpl2/ ], [ qw/Artistic GPL-2/ ], 'perl + gpl2';
-check_licenses [ qw/perl bsd/ ], [ qw/Artistic GPL-2 BSD/ ], 'perl + bsd';
+check_licenses [ 'perl' ], [ qw<Artistic GPL-2> ], 'perl';
+check_licenses [ qw<perl gpl2> ], [ qw<Artistic GPL-2> ], 'perl + gpl2';
+check_licenses [ qw<perl bsd> ], [ qw<Artistic GPL-2 BSD> ], 'perl + bsd';