junboli ee66db5dc9 Fix html_last_updated_fmt in conf.py
1. remove duplicate html_last_updated_fmt in doc/source/conf.py
   the second one cause the new added one not take effect.
2. update html_last_updated_fmt in api-ref/source/conf.py
   use the recommended '%Y-%m-%d %H:%M' data time format.

Change-Id: Ib37b8a05c88667b34438186c55b6eb3f64b64960
2017-09-09 23:01:08 +08:00
..
2017-08-24 17:56:47 +00:00
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2017-09-09 23:01:08 +08:00