message: Fix test failures due to CLI parameters
  Fixes
diff: @@ -12,7 +12,7 @@ use crate::config::window::{Class, DEFAULT_NAME};
  use crate::config::{serde_utils, UiConfig};
  /// CLI options for the main Alacritty executable.
  -#[derive(StructOpt, Debug)]
  +#[derive(StructOpt, Default, Debug)]
  #[structopt(author, about, version = env!("VERSION"))]
  pub struct Options {
  /// Print all events to stdout.
  @@ -283,7 +283,7 @@ mod tests {
  let mut config = UiConfig::default();
  let old_dynamic_title = config.window.dynamic_title;
  - Options::new().override_config(&mut config);
  + Options::default().override_config(&mut config);
  assert_eq!(old_dynamic_title, config.window.dynamic_title);
  }
  @@ -292,7 +292,7 @@ mod tests {
  fn dynamic_title_overridden_by_options() {
  let mut config = UiConfig::default();
  - let options = Options { title: Some("foo".to_owned()), ..Options::new() };
  + let options = Options { title: Some("foo".to_owned()), ..Options::default() };
  options.override_config(&mut config);
  assert!(!config.window.dynamic_title);
  @@ -303,7 +303,7 @@ mod tests {
  let mut config = UiConfig::default();
  config.window.title = "foo".to_owned();
  - Options::new().override_config(&mut config);
  + Options::default().override_config(&mut config);
  assert!(config.window.dynamic_title);
  }
  