out_es: fix default value for buffer_size

Signed-off-by: Eduardo Silva <[email protected]>

Author: edsiper

plugins/out_es/es.h

@@ -30,7 +30,7 @@
 #define FLB_ES_DEFAULT_TIME_KEY   "@timestamp"
 #define FLB_ES_DEFAULT_TIME_KEYF  "%Y-%m-%dT%H:%M:%S"
 #define FLB_ES_DEFAULT_TAG_KEY    "flb-key"
-#define FLB_ES_DEFAULT_HTTP_MAX   "4K"
+#define FLB_ES_DEFAULT_HTTP_MAX   "4096"
 
 struct flb_elasticsearch {
     /* Elasticsearch index (database) and type (table) */