Remove some unnecessary spaces

There is warning message when building docs, this patch
fix it.

TrivialFix

Change-Id: Ieb5543a66a618b7863a01b00d0eaf04e3b716eea
This commit is contained in:
ZhangHongtao 2017-06-02 18:03:53 +08:00
parent 1f7adde05b
commit e04d10a8f2