feat: updates

src/cmd_piv_ecsign.rs

@@ -7,7 +7,7 @@ use yubikey::piv::{metadata, sign_data, AlgorithmId, ManagementAlgorithmId};
 use yubikey::YubiKey;
 
 use crate::util::base64_encode;
-use crate::{argsutil, cmdutil, pivutil};
+use crate::{argsutil, cmdutil, pivutil, util};
 
 pub struct CommandImpl;
 
@@ -80,7 +80,7 @@ impl Command for CommandImpl {
         }
 
         if json_output {
-            println!("{}", serde_json::to_string_pretty(&json).unwrap());
+            util::print_pretty_json(&json);
         }
         Ok(None)
     }