avoid duplicate extra opts (apache#9469)

Fixed: apache#9433

bin/pulsar

@@ -274,7 +274,12 @@ OPTS="$OPTS -Djute.maxbuffer=10485760 -Djava.net.preferIPv4Stack=true"
 
 OPTS="-cp $PULSAR_CLASSPATH $OPTS"
 
-OPTS="$OPTS $PULSAR_EXTRA_OPTS $PULSAR_MEM $PULSAR_GC"
+if [ $COMMAND == "bookie" ]; then
+  # Pass BOOKIE_EXTRA_OPTS option defined in bkenv.sh
+  OPTS="$OPTS $BOOKIE_EXTRA_OPTS"
+else
+  OPTS="$OPTS $PULSAR_EXTRA_OPTS $PULSAR_MEM $PULSAR_GC"
+fi
 
 # log directory & file
 PULSAR_LOG_DIR=${PULSAR_LOG_DIR:-"$PULSAR_HOME/logs"}
@@ -310,8 +315,6 @@ if [ $COMMAND == "broker" ]; then
     exec $JAVA $OPTS $ASPECTJ_AGENT -Dpulsar.log.file=$PULSAR_LOG_FILE org.apache.pulsar.PulsarBrokerStarter --broker-conf $PULSAR_BROKER_CONF $@
 elif [ $COMMAND == "bookie" ]; then
     PULSAR_LOG_FILE=${PULSAR_LOG_FILE:-"bookkeeper.log"}
-    # Pass BOOKIE_EXTRA_OPTS option defined in pulsar_env.sh
-    OPTS="$OPTS $BOOKIE_EXTRA_OPTS"
     exec $JAVA $OPTS -Dpulsar.log.file=$PULSAR_LOG_FILE org.apache.bookkeeper.server.Main --conf $PULSAR_BOOKKEEPER_CONF $@
 elif [ $COMMAND == "zookeeper" ]; then
     PULSAR_LOG_FILE=${PULSAR_LOG_FILE:-"zookeeper.log"}