[dak/master] Clarify what this set is for.

[Chris Lamb <lamby@debian.org>]

---
 daklib/utils.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/daklib/utils.py b/daklib/utils.py
index 0c9101c..30a469b 100644
--- a/daklib/utils.py
+++ b/daklib/utils.py
@@ -1102,7 +1102,7 @@ def mail_addresses_for_upload(maintainer, changed_by, fingerprint):
 
     # Compute the set of addresses of the recipients
     addresses = set()  # Name + email
-    emails = set()     # Email only
+    emails = set()     # Email only, used to avoid duplicates
     for recipient in recipients:
         if recipient.startswith('mail:'):  # Email hardcoded in config
             address = recipient[5:]
-- 
2.1.4