Fix Drops-of-Diamond#7 by making sure "." is in search path

.githooks/license-maintainer/pre-commit

@@ -1,6 +1,6 @@
 #!/usr/bin/perl
 
-# Copyright 2013, 2015 Nitor Creations Oy, Jonas Berlin
+# Copyright 2013, 2015, 2017 Nitor Creations Oy, Jonas Berlin
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -14,6 +14,10 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+BEGIN {
+    push @INC, '.';
+}
+
 use strict;
 use warnings;
 use IPC::Open2;