From b3b81b4f0e1cd0b37ab2dfdf3e7301e0ef3e0676 Mon Sep 17 00:00:00 2001
From: Akira Ajisaka <aajisaka@apache.org>
Date: Thu, 7 Jul 2016 15:29:26 -0700
Subject: [PATCH] HADOOP-13320. Fix arguments check in documentation for
 WordCount v2.0. Contributed by niccolo becchi.

(cherry picked from commit 9d46a49c746b9e1ef552dbb10d1e22f87db68c76)
---
 .../src/site/markdown/MapReduceTutorial.md                      | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/site/markdown/MapReduceTutorial.md b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/site/markdown/MapReduceTutorial.md
index 8271e7e90ae..85996766965 100644
--- a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/site/markdown/MapReduceTutorial.md
+++ b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/site/markdown/MapReduceTutorial.md
@@ -1040,7 +1040,7 @@ public class WordCount2 {
     Configuration conf = new Configuration();
     GenericOptionsParser optionParser = new GenericOptionsParser(conf, args);
     String[] remainingArgs = optionParser.getRemainingArgs();
-    if (!(remainingArgs.length != 2 | | remainingArgs.length != 4)) {
+    if ((remainingArgs.length != 2) && (remainingArgs.length != 4)) {
       System.err.println("Usage: wordcount <in> <out> [-skip skipPatternFile]");
       System.exit(2);
     }