Shutdown everything on ShardManager::shutdown_all

Calling `ShardManager::shutdown_all` will now send a message to the
shard queuer and shard monitor to shutdown. This will now cause
`Client::start_connection` to exit.

Additionally, `Client::start_connection` and related functions that call
this (e.g. `Client::start_autosharded`) now return `Ok(())` on clean
exits.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/client/mod.rs b/src/client/mod.rs
index 6cba49a..8babece 100644
--- a/src/client/mod.rs
+++ b/src/client/mod.rs
@@ -849,7 +849,7 @@ impl Client {
 
         self.shard_manager_worker.run();
 
-        Err(Error::Client(ClientError::Shutdown))
+        Ok(())
     }
 }