Vendor dependencies for 0.3.0 release

vendor/same-file/examples/is_same_file.rs

@@ -0,0 +1,11 @@
+use same_file::is_same_file;
+use std::io;
+
+fn try_main() -> Result<(), io::Error> {
+    assert!(is_same_file("/bin/sh", "/usr/bin/sh")?);
+    Ok(())
+}
+
+fn main() {
+    try_main().unwrap();
+}

vendor/same-file/examples/is_stderr.rs

@@ -0,0 +1,31 @@
+use std::io;
+use std::process;
+
+use same_file::Handle;
+
+fn main() {
+    if let Err(err) = run() {
+        println!("{}", err);
+        process::exit(1);
+    }
+}
+
+fn run() -> io::Result<()> {
+    // Run with `cargo run --example is_stderr 2> examples/stderr` to see
+    // interesting output.
+    let candidates = &[
+        "examples/is_same_file.rs",
+        "examples/is_stderr.rs",
+        "examples/stderr",
+    ];
+    let stderr_handle = Handle::stderr()?;
+    for candidate in candidates {
+        let handle = Handle::from_path(candidate)?;
+        if stderr_handle == handle {
+            println!("{:?} is stderr!", candidate);
+        } else {
+            println!("{:?} is NOT stderr!", candidate);
+        }
+    }
+    Ok(())
+}