message: nit: bail message grammar
diff: @@ -12,7 +12,7 @@ impl Package {
  pub fn main(&self, build_dir: &PathBuf) -> Result<PathBuf, failure::Error> {
  if self.main == PathBuf::from("") {
  failure::bail!(
  - "The `main` key in your `package.json` file is required; please specified the entrypoint of your Worker.",
  + "The `main` key in your `package.json` file is required; please specify the entry point of your Worker.",
  )
  } else if !build_dir.join(&self.main).exists() {
  failure::bail!(
  