Fix elasticsearch-exporter command

Signed-off-by: Alejandro Moreno <amoreno@bitnami.com>

bitnami/elasticsearch/Chart.yaml

@@ -1,6 +1,6 @@
 apiVersion: v1
 name: elasticsearch
-version: 6.3.7
+version: 6.3.8
 appVersion: 7.3.2
 description: A highly scalable open-source full-text search and analytics engine
 keywords:

bitnami/elasticsearch/templates/metrics-deploy.yaml

@@ -33,7 +33,7 @@ spec:
       - name: {{ template "elasticsearch.metrics.fullname" . }}
         image:  {{ template "elasticsearch.metrics.image" . }}
         imagePullPolicy: {{ .Values.metrics.image.pullPolicy | quote }}
-        args: [ "-es.uri=http://{{ template "elasticsearch.coordinating.fullname" . }}:{{ .Values.coordinating.service.port }}", "-es.all=true" ]
+        args: [ "--es.uri=http://{{ template "elasticsearch.coordinating.fullname" . }}:{{ .Values.coordinating.service.port }}", "--es.all" ]
         ports:
         - name: metrics
           containerPort: 9114