[dak/master] Ignore 'Operation not permitted' error.

[Torsten Werner <twerner@debian.org>]

Signed-off-by: Torsten Werner <twerner@debian.org>
---
 daklib/queue.py |    7 ++++++-
 1 files changed, 6 insertions(+), 1 deletions(-)

diff --git a/daklib/queue.py b/daklib/queue.py
index 8acfb4e..e2ab846 100755
--- a/daklib/queue.py
+++ b/daklib/queue.py
@@ -2432,7 +2432,12 @@ distribution."""
         self.force_reject(reject_files)
 
         # Change permissions of the .changes file to be world readable
-        os.chmod(changesfile, os.stat(changesfile).st_mode | stat.S_IROTH)
+        try:
+            os.chmod(changesfile, os.stat(changesfile).st_mode | stat.S_IROTH)
+        except OSError as (errno, strerror):
+            # Ignore 'Operation not permitted' error.
+            if errno != 1:
+                raise
 
         # If we fail here someone is probably trying to exploit the race
         # so let's just raise an exception ...
-- 
1.7.2.5