[interchange] Explicitly fix "once" RUNDIR declaration

[David Christensen]

commit 263b6539e8bb6ad04f467c6b162d1df4e5e22c8f
Author: David Christensen <david at endpoint.com>
Date:   Thu Jun 22 12:56:51 2017 -0500

    Explicitly fix "once" RUNDIR declaration

 lib/Vend/Server.pm |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/lib/Vend/Server.pm b/lib/Vend/Server.pm
index 3b39e54..3bb495d 100644
--- a/lib/Vend/Server.pm
+++ b/lib/Vend/Server.pm
@@ -23,7 +23,7 @@
 
 package Vend::Server;
 
-use vars qw($VERSION $Has_JSON);
+use vars qw($VERSION $Has_JSON $RUNDIR);
 $VERSION = '2.108';
 
 use Cwd;