From 818c19859fcc2f2d693a51684b940ad7f03228ec Mon Sep 17 00:00:00 2001
From: Lionel Sambuc <lionel.sambuc@epfl.ch>
Date: Thu, 10 Oct 2019 15:00:10 +0200
Subject: [PATCH] Improve online help

---
 src/main.rs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/main.rs b/src/main.rs
index 61f62ca..af42634 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -6,7 +6,9 @@ use structopt::StructOpt;
 
 #[derive(StructOpt, Debug)]
 struct Opt {
-    /// List of datasets to index.
+    /// List of datasets to index, with the following syntax per dataset:
+    /// name[:version]: where name is the basename of the input files, and
+    /// `version` a string to add to the dataset description
     datasets: Vec<String>,
 }