Change default configuration path to windows standard %APPDATA% or else

[hugo-sama]

Problem you are trying to solve

Rust putting configuration and settings under user home directory.
Its inappropriate keep using path the Linux Legacy way.
Even developers for Linux start using XDG_CONFIG_HOME that points to $HOME/.config/ avoid putting everything under user home dir.

Solution you'd like

move configuration path from %USERPROFILE%/.rustup to somewhere like %APPDATA%/rustup

env var from microsoft

Notes

No response

[djc]

Going to close this as a duplicate of #247.