Sigh, need "use Config" as well.

tglsfdc · tglsfdc · commit bba442ef9397 · 2015-10-12T19:49:22.000-04:00
This time with some manual testing behind it ...
diff --git a/src/test/perl/TestLib.pm b/src/test/perl/TestLib.pm
@@ -3,6 +3,7 @@ package TestLib;
 use strict;
 use warnings;
 
+use Config;
 use Exporter 'import';
 our @EXPORT = qw(
   tempdir
