server: load_key: Support ASCII-armored key file

src/server.rs

@@ -5,7 +5,7 @@ use std::path::Path;
 use std::str::FromStr;
 use std::sync::Arc;
 
-use age::armor::{ArmoredWriter, Format};
+use age::armor::{ArmoredReader, ArmoredWriter, Format};
 use age::ssh::Recipient;
 use age::x25519::Identity;
 use age::{Decryptor, Encryptor};
@@ -237,7 +237,7 @@ fn load_key(
         }
     };
     if let Some(key) = key {
-        let dec = match Decryptor::new(&keystr[..]) {
+        let dec = match Decryptor::new(ArmoredReader::new(&keystr[..])) {
             Ok(d) => match d {
                 Decryptor::Recipients(d) => d,
                 _ => {