xmpp-rs: add env_logger in example

Signed-off-by: Maxime “pep” Buquet <pep@bouah.net>

xmpp-rs/Cargo.toml

@@ -20,6 +20,9 @@ futures = "0.3"
 tokio = "0.2"
 log = "0.4"
 
+[dev-dependencies]
+env_logger = "0.7"
+
 [features]
 default = ["avatars"]
 avatars = []

xmpp-rs/examples/hello_bot.rs

@@ -4,12 +4,15 @@
 // License, v. 2.0. If a copy of the MPL was not distributed with this
 // file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
+use env_logger;
 use std::env::args;
 use xmpp::{ClientBuilder, ClientFeature, ClientType, Event};
 use xmpp_parsers::{message::MessageType, Jid};
 
 #[tokio::main]
 async fn main() -> Result<(), Option<()>> {
+    env_logger::init();
+
     let args: Vec<String> = args().collect();
     if args.len() != 3 {
         println!("Usage: {} <jid> <password>", args[0]);