HADOOP-13320. Fix arguments check in the WordCount v2.0 in Documentation#108

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pippobaudos:HADOOP-13320

Commits on Jun 24, 2016

HADOOP-13320. Fix arguments check in the WordCount v2.0 in Doc. Contributed by Niccolo Becchi
Niccolo Becchi
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Commits on Jul 1, 2016

HADOOP-13320. Fix arguments check in the WordCount v2.0: simplified the logic a little
pippobaudos
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