repo_config: switch stdioLogName back to None

[zowoq]

@Mic92 Was there a reason you changed this from None in 323f888, None still seems to work?

Using toml works but shows two log sections under Evaluate flake: https://buildbot.nix-community.org/#/builders/4466/builds/478

[Mic92]

@Mic92 Was there a reason you changed this from None in 323f888, None still seems to work?

Using toml works but shows two log sections under Evaluate flake: https://buildbot.nix-community.org/#/builders/4466/builds/478

I thought there was a type error but maybe this was mistake.

[zowoq]

https://buildbot.thalheim.io/#/builders/521/builds/119

error: Argument "stdioLogName" to "makeRemoteShellCommand" of "ShellMixin" has incompatible type "None"; expected "str"  [arg-type]

Sorry, I must have got the branches mixed up, it is a type error. Is it okay to ignore? Pushed an ignore to #436.