set umask to the defautl value instead of 0

stddlib/daemon.py

@@ -44,7 +44,7 @@ class Daemon(object):
         # Change cwd to / to avoid interfering with other mounted file systems
         os.chdir("/")
         # Reset the umask
-        os.umask(0)
+        os.umask(0o22)
 
         # Close possibly open file descriptors
         os.close(0)