Zhongyue Luo e3721d2e05 Fix ATTR_NOT_SPECIFIED comparison errors
Fixes bug #1099663

Replaced equality operators used with ATTR_NOT_SPECIFIED to 'is' or 'is not'.
Used is_attr_set() where comparsion is done to None and ATTR_NOT_SPECIFIED.

Change-Id: I67c87051b46ca0518fa777cbb1c3e6141a533b61
2013-01-16 11:04:23 +08:00
..
2011-11-28 10:33:52 -08:00
2012-11-21 08:13:26 +08:00
2012-12-04 16:46:44 +08:00
2012-12-04 16:46:44 +08:00