bug#53743: Using spaces in names doesn't have complete sanitization

[Tsarina Baelarina Nina]

I put my name as Tsarina Baelarina Nina, as opposed to my real name. It created the correct home profile, but also included the two extra empty directories in my home directory as included in the attachment for proof. I think I remember reading something about camel casing for user names on the system, as in the name can't start with a capital letter, but I thought you could get away with spaces if you escaped the strings properly \(space).

Screenshot from 2022-02-02 20-39-05.png
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