[Dynamometer] start-dynamometer-cluster.sh shows its usage even if correct arguments are given.

When trying to launch the infrastructure application to begin the startup of the internal HDFS cluster as shown in the Manual Workload Launch section in here
 

$ ./dynamometer-infra/bin/start-dynamometer-cluster.sh \
 -hadoop_binary_path hadoop-3.0.2.tar.gz \
 -conf_path my-hadoop-conf \
 -fs_image_dir hdfs:///fsimage \
 -block_list_path hdfs:///dyno/blocks

its usage is always shown even if correct arguments are given, if `-hadoop_binary_path` is placed as a first argument for the script.