exec: ensure certs always end with a new line (#1096)

ensure certs always end with a new line

Signed-off-by: goenning <me@goenning.net>

Signed-off-by: goenning <me@goenning.net>
Co-authored-by: Eirik A <sszynrae@gmail.com>

kube-client/src/client/config_ext.rs

@@ -232,8 +232,12 @@ impl Config {
     fn exec_identity_pem(&self) -> Option<Vec<u8>> {
         match Auth::try_from(&self.auth_info) {
             Ok(Auth::Certificate(client_certificate_data, client_key_data)) => {
+                const NEW_LINE: u8 = b'\n';
+
                 let mut buffer = client_key_data.expose_secret().as_bytes().to_vec();
+                buffer.push(NEW_LINE);
                 buffer.extend_from_slice(client_certificate_data.as_bytes());
+                buffer.push(NEW_LINE);
                 Some(buffer)
             }
             _ => None,