message: rust: cosmetic changes for consistency
diff: @@ -136,11 +136,12 @@ pub fn parse<T: AsRef<[u8]>>(input: &T) -> Result<Module, String> {
  };
  if ptr.is_null() {
  debug_assert!(err.code() != 0);
  - return Err(err.message());
  - }
  + Err(err.message())
  + } else {
  debug_assert!(err.code() == 0);
  Ok(Module { 0: ptr })
  }
  +}
  /// An instance of a module.
  pub struct Instance(NonNull<sys::FizzyInstance>);
  @@ -173,14 +174,15 @@ impl Module {
  core::mem::forget(self);
  if ptr.is_null() {
  debug_assert!(err.code() != 0);
  - return Err(err.message());
  - }
  + Err(err.message())
  + } else {
  debug_assert!(err.code() == 0);
  Ok(Instance {
  0: unsafe { NonNull::new_unchecked(ptr) },
  })
  }
  }
  +}
  /// A WebAssembly value of i32/i64/f32/f64.
  pub type Value = sys::FizzyValue;
  