[dak/master] daklib/upload.py: handle missing Architecture field like an empty one

[Ansgar Burchardt <ansgar@debian.org>]

This should allow dak to reject some more invalid uploads without throwing an
unhandled exception.
---
 daklib/upload.py |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/daklib/upload.py b/daklib/upload.py
index d6a527a..cabec15 100644
--- a/daklib/upload.py
+++ b/daklib/upload.py
@@ -281,7 +281,7 @@ class Changes(object):
         """list of architectures included in the upload
         @type: list of str
         """
-        return self.changes['Architecture'].split()
+        return self.changes.get('Architecture', '').split()
 
     @property
     def distributions(self):
-- 
1.7.10.4