//! Port of `src/nvim/os/env.c` (not vendored under `vendor/`; the names appear as
//! calls in the vendored eval tree, so the drift gate recognizes them).
//!
//! Only the process-id query used by `init_srand()` is ported here.
/// Port of `os_get_pid()` from `Src/os/env.c:309`.
///
/// "Get the process ID of the Neovim process." (Here: the host process.)