Re: [PATCH 4/4] trace2: use system config for default trace2 settings

> diff --git a/trace2.h b/trace2.h
> index 8f89e70c44..cda8349058 100644
> --- a/trace2.h
> +++ b/trace2.h
> @@ -38,7 +38,8 @@ void trace2_initialize_clock(void);
>  
>  /*
>   * Initialize TRACE2 tracing facility if any of the builtin TRACE2
> - * targets are enabled in the environment.  Emits a 'version' event.
> + * targets are enabled in the system config or the environment.
> + * Emits a 'version' event.
>   *
>   * Cleanup/Termination is handled automatically by a registered
>   * atexit() routine.
> @@ -125,8 +126,8 @@ void trace2_cmd_alias_fl(const char *file, int line, const char *alias,
>   * Emit one or more 'def_param' events for "interesting" configuration
>   * settings.
>   *
> - * The environment variable "GIT_TR2_CONFIG_PARAMS" can be set to a
> - * list of patterns considered important.  For example:
> + * Use the TR2_SYSENV_CFG_PARAM setting to register a list of patterns
> + * configured important.  For example:
>   *
>   *    GIT_TR2_CONFIG_PARAMS="core.*,remote.*.url"
>   *