Cleanup zebra-checkpoints

zebra-utils/src/bin/zebra-checkpoints/args.rs

@@ -2,13 +2,10 @@
 //!
 //! For usage please refer to the program help: `zebra-checkpoints --help`
 
-#![deny(missing_docs)]
-#![allow(clippy::try_err)]
-
 use structopt::StructOpt;
 
 /// zebra-checkpoints arguments
-#[derive(Debug, StructOpt)]
+#[derive(Clone, Debug, Eq, PartialEq, StructOpt)]
 pub struct Args {
     /// Path to zcash-cli command
     #[structopt(default_value = "zcash-cli", short, long)]

zebra-utils/src/bin/zebra-checkpoints/main.rs

@@ -62,8 +62,8 @@ fn cmd_output(cmd: &mut std::process::Command) -> Result<String> {
 
 #[allow(clippy::print_stdout)]
 fn main() -> Result<()> {
+    // initialise
     init_tracing();
-
     color_eyre::install()?;
 
     // get the current block count