message: Apply the spell linter
  Summary: `arc lint --take SPELL --lintall $(hg files .)`
diff: @@ -164,7 +164,7 @@ impl StarlarkStr {
  }
  }
  - /// Get a Rust string refence from this Starlark string.
  + /// Get a Rust string reference from this Starlark string.
  pub fn as_str(&self) -> &str {
  unsafe {
  let slice = slice::from_raw_parts(self.str.body.as_ptr() as *const u8, self.len());
  