A regression introduced when we moved to systemd's logging is that the only
way to adjust the log-level of the udev daemon is via the env var, kernel
commandline or the commandline.
This reintroduces support for specifying this in the configuration file.
log_set_target(LOG_TARGET_AUTO);
log_parse_environment();
log_open();
+
udev_set_log_fn(udev, udev_main_log);
+ log_set_max_level(udev_get_log_priority(udev));
+
log_debug("version %s\n", VERSION);
label_init("/dev");