Refactor comments.

Author: Luca Palmieri

jira-wip/src/koans/03_cli/00_cli.rs

@@ -13,8 +13,11 @@
 /// Comments on each of the field and each of the `Command` variant will be shown in the
 /// help page of those commands!
 ///
-/// You can learn more about `structopt` looking at their documentation: https://docs.rs/structopt/0.3.12/structopt/
-/// You can see the code generated by `structopt` using `cargo expand`, see https://github.com/dtolnay/cargo-expand
+/// You can learn more about `structopt` looking at their documentation:
+/// https://docs.rs/structopt/0.3.12/structopt/
+///
+/// You can see the code generated by `structopt` using `cargo expand`:
+/// https://github.com/dtolnay/cargo-expand
 ///
 /// Fill in the missing fields!
 ///
@@ -97,19 +100,20 @@ pub mod cli {
     ///
     /// `dyn Error` is the syntax of a trait object, a more advanced topic that we will not be
     /// touching in this workshop.
-    /// Check its section in the Rust book if you are curious: https://doc.rust-lang.org/book/ch17-02-trait-objects.html#using-trait-objects-that-allow-for-values-of-different-types
+    /// Check its section in the Rust book if you are curious:
+    /// https://doc.rust-lang.org/book/ch17-02-trait-objects.html#using-trait-objects-that-allow-for-values-of-different-types
     pub fn handle_command(ticket_store: &mut TicketStore, command: Command) -> Result<(), Box<dyn Error>> {
         match command {
             Command::Create { description, title } => {
-                __
+                todo!()
             }
             Command::Edit {
                 id,
                 title,
                 description,
                 status,
             } => {
-                __
+                todo!()
             }
             Command::Delete { ticket_id } => match ticket_store.delete(&ticket_id) {
                 Some(deleted_ticket) => println!(
@@ -122,7 +126,7 @@ pub mod cli {
                 ),
             },
             Command::List => {
-                __
+                todo!()
             }
         }
         Ok(())