Fix entrypoint.sh in example-setup with broker

Change-Id: Id354fc81f3f9e8d042b3063d90fe02ecd050b3c1

example-setup/broker/entrypoint.sh

diff --git a/example-setup/broker/entrypoint.sh b/example-setup/broker/entrypoint.sh
index 95a750d..8e4e976 100755
--- a/example-setup/broker/entrypoint.sh
+++ b/example-setup/broker/entrypoint.sh
@@ -16,7 +16,7 @@
 setup_replication_config
 setup_gerrit_config
 
-ARG JAVA_OPTS='--add-opens java.base/java.net=ALL-UNNAMED --add-opens java.base/java.lang.invoke=ALL-UNNAMED'
+JAVA_OPTS='--add-opens java.base/java.net=ALL-UNNAMED --add-opens java.base/java.lang.invoke=ALL-UNNAMED'
 
 echo "Init phase ..."
 java $JAVA_OPTS -jar /var/gerrit/bin/gerrit.war init --batch --install-all-plugins -d /var/gerrit
@@ -25,4 +25,4 @@
 java $JAVA_OPTS -jar /var/gerrit/bin/gerrit.war reindex -d /var/gerrit
 
 echo "Running Gerrit ..."
-exec /var/gerrit/bin/gerrit.sh run
\ No newline at end of file
+exec /var/gerrit/bin/gerrit.sh run