Update licensecheck to 2.11.2, which contains upstreamed patches:

third_party/devscripts/licensecheck.pl

 #!/usr/bin/perl -w
 # This script was originally based on the script of the same name from
 # the KDE SDK (by dfaure@kde.org)
 #
 # This version is
 #   Copyright (C) 2007, 2008 Adam D. Barratt
 #
 # This program 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 2 of the License, or
@@ skipping 107 matching lines @@
 General Public License, version 2 or later.
 
 =head1 AUTHOR
 
 Adam D. Barratt <adam@adam-barratt.org.uk>
 
 =cut
 
 use strict;
 use warnings;
-use Getopt::Long;
+use Getopt::Long qw(:config gnu_getopt);
 use File::Basename;
 
 sub fatal($);
 sub parse_copyright($);
 sub parselicense($);
 
 my $progname = basename($0);
 
 # From dpkg-source
 my $default_ignore_regex = '
@@ skipping 284 matching lines @@
     if ($licensetext =~ /This file is part of the .*Qt GUI Toolkit. This file may be distributed under the terms of the Q Public License as defined/) {
         $license = "QPL (part of Qt) $license";
     } elsif ($licensetext =~ /may be distributed under the terms of the Q Public License as defined/) {
         $license = "QPL $license";
     }
 
     if ($licensetext =~ /opensource\.org\/licenses\/mit-license\.php/) {
         $license = "MIT/X11 (BSD like) $license";
     } elsif ($licensetext =~ /Permission is hereby granted, free of charge, to any person obtaining a copy of this software and(\/or)? associated documentation files \(the (Software|Materials)\), to deal in the (Software|Materials)/) {
         $license = "MIT/X11 (BSD like) $license";
+    } elsif ($licensetext =~ /Permission is hereby granted, without written agreement and without license or royalty fees, to use, copy, modify, and distribute this software and its documentation for any purpose/) {
+        $license = "MIT/X11 (BSD like) $license";
     }
 
     if ($licensetext  =~ /Permission to use, copy, modify, and(\/or)? distribute this software for any purpose with or without fee is hereby granted, provided.*copyright notice.*permission notice.*all copies/) {
         $license = "ISC $license";
     }
 
     if ($licensetext =~ /THIS SOFTWARE IS PROVIDED .*AS IS AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY/) {
         if ($licensetext =~ /All advertising materials mentioning features or use of this software must display the following/) {
             $license = "BSD (4 clause) $license";
         } elsif ($licensetext =~ /be used to endorse or promote products derived from this software/) {
@@ skipping 93 matching lines @@
     return $license;
 }
 
 sub fatal($) {
     my ($pack,$file,$line);
     ($pack,$file,$line) = caller();
     (my $msg = "$progname: fatal error at line $line:\n@_\n") =~ tr/\0//d;
     $msg =~ s/\n\n$/\n/;
     die $msg;
 }