chore: checkpoint before Python removal

vendor/tar/examples/list.rs

@@ -0,0 +1,17 @@
+//! An example of listing the file names of entries in an archive.
+//!
+//! Takes a tarball on stdin and prints out all of the entries inside.
+
+extern crate tar;
+
+use std::io::stdin;
+
+use tar::Archive;
+
+fn main() {
+    let mut ar = Archive::new(stdin());
+    for file in ar.entries().unwrap() {
+        let f = file.unwrap();
+        println!("{}", f.path().unwrap().display());
+    }
+}