display aliases for long and short args in the cli reference (#12824)

Fixes #12494

(I don't feel like showing it in long-help matters too much...)

Author: Gankra

crates/uv-dev/src/generate_cli_reference.rs

@@ -232,10 +232,16 @@ fn generate_command<'a>(output: &mut String, command: &'a Command, parents: &mut
                 let id = format!("{name_key}--{long}");
 
                 output.push_str(&format!("<dt id=\"{id}\">"));
-                output.push_str(&format!("<a href=\"#{id}\"><code>--{long}</code></a>",));
+                output.push_str(&format!("<a href=\"#{id}\"><code>--{long}</code></a>"));
+                for long_alias in opt.get_all_aliases().into_iter().flatten() {
+                    output.push_str(&format!(", <code>--{long_alias}</code>"));
+                }
                 if let Some(short) = opt.get_short() {
                     output.push_str(&format!(", <code>-{short}</code>"));
                 }
+                for short_alias in opt.get_all_short_aliases().into_iter().flatten() {
+                    output.push_str(&format!(", <code>-{short_alias}</code>"));
+                }
 
                 // Re-implements private `Arg::is_takes_value_set` used in `Command::get_opts`
                 if opt