pub fn host_login_environment_block() -> Result<Vec<u16>>Expand description
The login environment in the double-NUL-terminated UTF-16 block form.
This shape exists because CreateProcessW consumes it on Windows. It is
provided on every host so the facade has one signature rather than one per
host, and because the encoding is the same data either way – a caller
driving a Windows API through a cross-platform code path should not have to
choose between a cfg and a hand-rolled encoder.