tree 08df161771d53773726444bdd4fd0b13432f10f2
parent 81086e4cc4152fd672b381c37904a8f2d9bdc8ac
author guo yunxian <yunxian.guo@easystack.cn> 1470810916 +0800
committer guo yunxian <yunxian.guo@easystack.cn> 1471400279 +0800

Remove useless parenthesis

Origin writing way is prompted with wavy lines in the editor like
Pycharm highlights redundant parentheses. This patch change it to
a more appropriate way.

Change-Id: I2a4738dfc91c1032dee74a5d104008bb82e16d89