esp_http_client.h: Fix return type in declaration of esp_http_client_flush_response.
Closes:
@@ -537,7 +537,7 @@ int esp_http_client_read_response(esp_http_client_handle_t client, char *buffer,
* - ESP_FAIL If failed to read response
* - ESP_ERR_INVALID_ARG If the client is NULL
*/
-int esp_http_client_flush_response(esp_http_client_handle_t client, int *len);
+esp_err_t esp_http_client_flush_response(esp_http_client_handle_t client, int *len);
/**
* @brief Get URL from client
