Function gnunet_sys::GNUNET_GETOPT_option_logfile

pub unsafe extern "C" fn GNUNET_GETOPT_option_logfile(
    logfn: *mut *mut c_char
) -> GNUNET_GETOPT_CommandLineOption

Allow user to specify log file name (-l option)

@param[out] logfn set to the name of the logfile