Remove space after backslash

WordCount/run_wordcount.sh

@@ -12,9 +12,9 @@ hdfs dfs -rm -r hadoop_examples/wordcount/output/
 yarn jar "$dirname/hadoop-streaming.jar" \
 -input hadoop_examples/wordcount/input \
 -output hadoop_examples/wordcount/output \
--mapper map.py \ 
--reducer red.py \ 
--file map.py \ 
+-mapper map.py \
+-reducer red.py \
+-file map.py \
 -file red.py \
 -jobconf mapred.job.queue.name=$hadoop_queue_name