fixup readme & bump rust release

src/main.rs

@@ -116,7 +116,5 @@ async fn run() -> Result<()> {
 
 #[tokio::main]
 async fn main() -> Result<()> {
-    run().await?;
-    eprintln!("\n");
-    Ok(())
+    run().await
 }

src/utils.rs

@@ -97,7 +97,6 @@ Example:
     verbatim_doc_comment,
     group(ArgGroup::new("generic_match").args(["generic_positive", "generic_negative"])),
 )]
-
 pub struct Args {
     /// jail time (seconds)
     #[clap(long, default_value = "21600")]