Update Dockerfile

Author: robco

Dockerfile

@@ -52,7 +52,7 @@ RUN mkdir -p ${JMETER_HOME}
     && curl -fsSL "${JMETER_REPO}-${JMETER_VERSION}.tgz" -o /tmp/jmeter.tgz                       \
     && tar -xzf /tmp/jmeter.tgz -C /opt                                                           \
     && mv /opt/apache-jmeter-${JMETER_VERSION} ${JMETER_HOME}                                     \
-    && ls /opt/jmeter
+    && ls /opt/jmeter                                                                             \
     && rm -f /tmp/jmeter.tgz
 
 # Install Python packages