core: typos and comments improve

1. fix typos
2. methods recevier of struct should be same
3. comments improve

(cherry picked from commit 1ba9795395)
This commit is contained in:
changhong
2017-05-11 09:55:48 +08:00
committed by Péter Szilágyi
parent 07aae19e5d
commit 17f0b11942
11 changed files with 324 additions and 323 deletions

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