Use replace rather than overwrite for cargo fmt

Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 
 name = "rustfmt"
-version = "0.2.0"
+version = "0.2.1"
 authors = ["Nicholas Cameron <ncameron@mozilla.com>", "Marcus Klaas <mail@marcusklaas.nl>", "The Rustfmt contributors"]
 description = "Tool to find and fix Rust formatting issues"
 repository = "https://github.com/rust-lang-nursery/rustfmt"

README.md

@@ -62,7 +62,8 @@ screen, for example.
 
 You can run `rustfmt --help` for more information.
 
-`cargo fmt` uses `--write-mode=overwrite` by default.
+`cargo fmt` uses `--write-mode=replace` by default.
+
 
 ## Running Rustfmt from your editor
 

src/bin/cargo-fmt.rs

@@ -69,7 +69,7 @@ fn format_crate(opts: &Options) {
 }
 
 fn get_fmt_args() -> Vec<String> {
-    let mut args = vec!["--write-mode=overwrite".to_string()];
+    let mut args = vec!["--write-mode=replace".to_string()];
     // All arguments after -- are passed to rustfmt
     args.extend(env::args().skip_while(|a| a != "--").skip(1));
 

src/lib.rs

@@ -189,7 +189,7 @@ fn sub(self, rhs: usize) -> Indent {
 
 #[derive(Copy, Clone)]
 pub enum WriteMode {
-    // Backups the original file and overwrites the orignal.
+    // Backsup the original file and overwrites the orignal.
     Replace,
     // Overwrites original file without backup.
     Overwrite,