Timezone change introduced unexpected lines into /etc/config/system

[manywrt]

In LuCI, System, General Settings, I changed Timezone from the default 'UTC' to 'Los Angeles,' and this is the look of `/etc/config/system' before and after.

Before

config system
	option hostname 'OpenWrt'
	option timezone 'UTC'
	option ttylogin '0'
	option log_size '64'
	option urandom_seed '0'

After

config system
	option hostname 'OpenWrt'
	option ttylogin '0'
	option log_size '64'
	option urandom_seed '0'
	option cronloglevel '5'
	option log_proto 'udp'
	option conloglevel '8'
	option timezone 'PST8PDT,M3.2.0,M11.1.0'
	option zonename 'America/Los Angeles'

I can understand option zonename 'America/Los Angeles'.

But should I be worried about these three lines?

	option cronloglevel '5'
	option log_proto 'udp'
	option conloglevel '8'

Did I do something wrong? Can a change of timezone introduce them? Should I delete them?

[mikma]

The log_proto and cronloglevel are the default values according to https://openwrt.org/docs/guide-user/base-system/system_configuration, but conloglevel should be 7 by default according to the same document. Maybe the default value has changed?

If you want more verbose messages in console put conloglevel to 8

If the console get swamped with kernel messages that you don't need, then you may consider lowing it from 8 to 7.

[manywrt]

Thank you. I think the default must have changed because I didn't even know what conloglevel was and certainly did not try to edit away from default. So the effect of changing LuCI's Timezone must be only to make the defaults "appear" in config.