Regarding TTY/Dialout groups

With the introduction of this commit, I have been having noise in my syslogs during boot like so:

Sun Apr 7 15:40:26 2019 user.info kernel: [    8.362939] procd: - early -
Sun Apr 7 15:40:26 2019 user.info kernel: [    8.365857] procd: - watchdog -
Sun Apr 7 15:40:26 2019 user.err kernel: [    8.466676] procd: cannot set group dialout for /dev/ttyS0
Sun Apr 7 15:40:26 2019 user.err kernel: [    8.472432] procd: cannot set group dialout for /dev/ttyS1
Sun Apr 7 15:40:26 2019 user.info kernel: [    8.980157] procd: - watchdog -
Sun Apr 7 15:40:26 2019 user.info kernel: [    8.983403] procd: - ubus -
Sun Apr 7 15:40:26 2019 user.info kernel: [    9.037858] procd: - init -

The device in question is a WRT1900ACSv2 (Mvebu, Cortex-A9). With regards to the log, I believe a question was asked in the LEDE-Dev mailing list in 2017 about this same noise. However, that question went unanswered....

However, everything is working fine. So, to re-iterate the question on the mailing list, is this just expected behavior?

Thinking out loud, was your /etc/group preserved over a flash and missing the needed group?

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Argh thanks! I should have looked at the darned file myself before thinking it was anything else! But, seeing someone like Koen rack his brains around it in the mailing list made me think I was never going to figure it out myself...

Anyways, I just SSH'd in and modified the /etc/group file manually as in the commit (preserving the dnsmasq user that was added at the bottom of the carried over file). Proceeded to hit reboot, and voilá - the message was gone.

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