[interchange] Fix --exclude option in interchange startup script.

[Peter Ajamian]

commit 1fd3682e85b740a1606bbcf74045451b5c1c6a06
Author: Peter Ajamian <peter at pajamian.dhs.org>
Date:   Sun Aug 16 00:28:02 2015 +1200

    Fix --exclude option in interchange startup script.
    
    Getopt::Long made an incompatible change as of version 2.33 hash values become
    mandatory when they are specified with "=", this makes our documented syntax
    for --exclude invalid.  To make it work again the hash values must be made
    optional by changing the "=" to ":".

 scripts/interchange.PL |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/scripts/interchange.PL b/scripts/interchange.PL
index c0c161b..236c698 100644
--- a/scripts/interchange.PL
+++ b/scripts/interchange.PL
@@ -712,7 +712,7 @@ sub parse_options {
         configfile|config|c|f=s
         dir|vendroot|d=s
         email=s
-        exclude|e=s
+        exclude|e:s
         flag=i
 		help|h
 		globalconfig