Slight improvement to misc/logfile.cpp and lib/logfile.h

[Nakhr11n]

Printf wrapper from https://github.com/fmtlib/fmt/issues/2391#issuecomment-869043202.

[winterheart]

Personally, I'd like to use something more feature-rich logger like spdlog or something based on fmt::fmt. But, your changes will make current logger better.

[Nakhr11n]

Personally, I'd like to use something more feature-rich logger like spdlog or something based on fmt::fmt.

Yes, me too. But I'm focusing on doing small code quality improvements right now.

[Lgt2x]

@bryanperris is this change still relevant with #212 ?

[bryanperris]

@bryanperris is this change still relevant with #212 ?

No.