runtest.pl: use lib '.' - because newer perl does not have that by default

To make tests work again on debian stretch.

diff --git a/test/etc_network_interfaces/runtest.pl b/test/etc_network_interfaces/runtest.pl
index 92cd7f8d777ef52b45f609ad117cecb590a985b4..c067dd1b38f3c498f437b850b9f33f204513a397 100755 (executable)
--- a/test/etc_network_interfaces/runtest.pl
+++ b/test/etc_network_interfaces/runtest.pl
@@ -1,6 +1,7 @@
 #!/usr/bin/perl
 
 use lib '../../src';
+use lib '.';
 use strict;
 use warnings;