message: Add no-modules to --target flag's help text
  Fixes
diff: @@ -81,7 +81,7 @@ pub struct BuildOptions {
  pub disable_dts: bool,
  #[structopt(long = "target", short = "t", default_value = "browser")]
  - /// Sets the target environment. [possible values: browser, nodejs]
  + /// Sets the target environment. [possible values: browser, nodejs, no-modules]
  pub target: String,
  #[structopt(long = "debug")]
  