Soak up stdin and write it atomically to a file — a Rust port of moreutils `sponge` with strict-compat mode, configurable spill-to-tempfile, and a typed library API.
//! `sponge` binary alias entry point (gated behind the `sponge-alias` Cargo feature).
//!//! Shares the same body as [`rusty_sponge::run`]; argv[0] auto-detect inside
//! `run()` routes invocations as `sponge` into Strict mode per FR-020.
fnmain()->std::process::ExitCode{rusty_sponge::run()}