in_forward: improve configuration parameter descriptions

- shared_key: clarify it's for secure forward authentication
- self_hostname: explain it's used in handshake for secure forward auth
- unix_perm: add trailing period for consistency
- empty_shared_key: clarify it enables empty string as shared key

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

Author: eschabell

plugins/in_forward/fw.c

@@ -481,12 +481,12 @@ static struct flb_config_map config_map[] = {
    {
     FLB_CONFIG_MAP_STR, "shared_key", NULL,
     0, FLB_TRUE, offsetof(struct flb_in_fw_config, shared_key),
-    "Shared key for authentication"
+    "Shared key for secure forward authentication."
    },
    {
     FLB_CONFIG_MAP_STR, "self_hostname", NULL,
     0, FLB_FALSE, 0,
-    "Hostname"
+    "Hostname used in the handshake process for secure forward authentication."
    },
    {
     FLB_CONFIG_MAP_STR, "security.users", NULL,
@@ -501,7 +501,7 @@ static struct flb_config_map config_map[] = {
    {
     FLB_CONFIG_MAP_STR, "unix_perm", (char *)NULL,
     0, FLB_TRUE, offsetof(struct flb_in_fw_config, unix_perm_str),
-    "Set the permissions for the UNIX socket"
+    "Set the permissions for the UNIX socket."
    },
    {
     FLB_CONFIG_MAP_SIZE, "buffer_chunk_size", FLB_IN_FW_CHUNK_SIZE,
@@ -516,7 +516,7 @@ static struct flb_config_map config_map[] = {
    {
     FLB_CONFIG_MAP_BOOL, "empty_shared_key", "false",
     0, FLB_TRUE, offsetof(struct flb_in_fw_config, empty_shared_key),
-    "Set an empty shared key for authentication"
+    "Enable an empty string as the shared key for authentication."
    },
    {0}
 };