in_splunk: add missing config param descriptions

  - http2: add description
  - buffer_max_size: add description
  - buffer_chunk_size: add description
  - tag_key: add description
  - store_token_in_metadata: fix typo (matadata -> metadata)

Fixes #11390

Signed-off-by: Eric D. Schabell <[email protected]>

Author: eschabell

plugins/in_splunk/splunk.c

@@ -217,19 +217,19 @@ static struct flb_config_map config_map[] = {
     {
      FLB_CONFIG_MAP_BOOL, "http2", "true",
      0, FLB_TRUE, offsetof(struct flb_splunk, enable_http2),
-     NULL
+     "Enable HTTP/2 support"
     },
 
     {
      FLB_CONFIG_MAP_SIZE, "buffer_max_size", HTTP_BUFFER_MAX_SIZE,
      0, FLB_TRUE, offsetof(struct flb_splunk, buffer_max_size),
-     ""
+     "Set the maximum size of buffer"
     },
 
     {
      FLB_CONFIG_MAP_SIZE, "buffer_chunk_size", HTTP_BUFFER_CHUNK_SIZE,
      0, FLB_TRUE, offsetof(struct flb_splunk, buffer_chunk_size),
-     ""
+     "Set the initial buffer size to store incoming data"
     },
 
     {
@@ -247,7 +247,7 @@ static struct flb_config_map config_map[] = {
     {
      FLB_CONFIG_MAP_BOOL, "store_token_in_metadata", "true",
      0, FLB_TRUE, offsetof(struct flb_splunk, store_token_in_metadata),
-     "Store Splunk HEC tokens in matadata. If set as false, they will be stored into records."
+     "Store Splunk HEC tokens in metadata. If set as false, they will be stored into records."
     },
 
     {
@@ -259,7 +259,7 @@ static struct flb_config_map config_map[] = {
     {
      FLB_CONFIG_MAP_STR, "tag_key", NULL,
      0, FLB_TRUE, offsetof(struct flb_splunk, tag_key),
-     ""
+     "Set a record key to specify the tag of the record"
     },