Clean struct-opt derive

src/cli/build/mod.rs

@@ -1,10 +1,8 @@
-use std::{io::Write, path::PathBuf};
+use super::*;
 
-use crate::{cfg::ConfigOptsBuild, gen_page};
-use structopt::StructOpt;
 
 /// Build the Rust WASM app and all of its assets.
-#[derive(Clone, Debug, StructOpt)]
+#[derive(Clone, Debug, Parser)]
 #[structopt(name = "build")]
 pub struct Build {
     #[structopt(flatten)]
@@ -15,7 +13,7 @@ impl Build {
     pub fn build(self) -> anyhow::Result<()> {
         let mut crate_config = crate::CrateConfig::new()?;
 
-        // change the relase state.
+        // change the release state.
         crate_config.with_release(self.build.release);
 
         if self.build.example.is_some() {