[ISSUE #1988] Fix the issue that can not update messageDelay correctly with mqadmin updateBrokerConfig command

use "$@" instead of #@ to make mutiple value parceled by quoted
available.

(cherry picked from commit 03e8b03ba397063945a1619293f0a15579e4764d)

distribution/bin/mqadmin

@@ -42,4 +42,4 @@ fi
 
 export ROCKETMQ_HOME
 
-sh ${ROCKETMQ_HOME}/bin/tools.sh org.apache.rocketmq.tools.command.MQAdminStartup $@
+sh ${ROCKETMQ_HOME}/bin/tools.sh org.apache.rocketmq.tools.command.MQAdminStartup "$@"

distribution/bin/tools.sh

@@ -40,4 +40,4 @@ JAVA_OPT="${JAVA_OPT} -server -Xms1g -Xmx1g -Xmn256m -XX:MetaspaceSize=128m -XX:
 JAVA_OPT="${JAVA_OPT} -Djava.ext.dirs=${BASE_DIR}/lib:${JAVA_HOME}/jre/lib/ext:${JAVA_HOME}/lib/ext"
 JAVA_OPT="${JAVA_OPT} -cp ${CLASSPATH}"
 
-$JAVA ${JAVA_OPT} $@
+$JAVA ${JAVA_OPT} "$@"