From c68d75cb8c94d1d81d8d0137f82b307f3f53137f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Nicol=C3=A1s=20Ortega=20Froysa?= <nicolas@ortegas.org>
Date: Wed, 3 Mar 2021 13:24:53 +0100
Subject: [PATCH] Add help information to --help option.

---
 src/main.rs | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/main.rs b/src/main.rs
index cb650c8..38bc606 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -23,11 +23,13 @@ use std::io::{BufRead, BufReader};
 use std::collections::VecDeque;
 
 #[derive(StructOpt)]
+#[structopt(about = "A prime number generator and tester.")]
 struct Opt {
-	#[structopt(short, long)]
+	#[structopt(short, long, help = "Print all found primes")]
 	verbose:bool,
-	#[structopt(short, long, name="FILE")]
+	#[structopt(short, long, name="FILE", help = "Import prime numbers from FILE")]
 	import:Option<PathBuf>,
+	#[structopt(help = "Ordinal of the prime to generate")]
 	n:usize,
 }