false(1): rewrite from C to Rust

src/false.rs

@@ -1,4 +1,5 @@
 /*
+ * Copyright (c) 2023 DTB <trinity@trinity.moe>
  * Copyright (c) 2023 Emma Tebibyte <emma@tebibyte.media>
  * SPDX-License-Identifier: CC0
  *
@@ -6,4 +7,8 @@
  * <http://creativecommons.org/publicdomain/zero/1.0>.
  */
 
-int main() { return 1; }
+use std::process::ExitCode;
+
+fn main() -> ExitCode {
+    ExitCode::from(1)
+}