[SPARK-3010] fix redundant conditional#1992

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scwf wants to merge 6 commits intoapache:masterfrom

Commits on Aug 13, 2014

Commits on Aug 14, 2014

Merge branch 'master' of https://github.com/apache/spark into patch-4
scwf
committed

Commits on Aug 17, 2014