[PATCH] parsemail: Fix return value for find_content error case

[Jeremy Kerr]

If we fail to decode a message payload, we'll fail with the following:

  Traceback (most recent call last):
    File "./patchwork/bin/parsemail.py", line 563, in <module>
      sys.exit(main(sys.argv))
    File "./patchwork/bin/parsemail.py", line 553, in main
      return parse_mail(mail, args['list_id'])
    File "./patchwork/bin/parsemail.py", line 464, in parse_mail
      (patch, comment, filenames) = find_content(project, mail)
  ValueError: need more than 2 values to unpack

- as the error condition for find_content only returns a 2-tuple. This
change fixes the error case to the 3-tuple return type.

Signed-off-by: Jeremy Kerr <jk at ozlabs.org>
---
 patchwork/bin/parsemail.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/patchwork/bin/parsemail.py b/patchwork/bin/parsemail.py
index f369fe4..3147431 100755
--- a/patchwork/bin/parsemail.py
+++ b/patchwork/bin/parsemail.py
@@ -231,7 +231,7 @@ def find_content(project, mail):
 
             # Could not find a valid decoded payload.  Fail.
             if payload is None:
-                return (None, None)
+                return (None, None, None)
 
         if subtype in ['x-patch', 'x-diff']:
             patchbuf = payload
-- 
2.5.0