message: Fixed error message if resume is called without rotate-key being run before
diff: @@ -234,7 +234,7 @@ pub mod rotate_key_command {
  .and_then(|did_info| {
  let temp_verkey = match did_info["tempVerkey"].as_str() {
  Some(temp_verkey) => Ok(temp_verkey.to_owned()),
  - None => Err(println_err!("Unable to resume, did you started rotate-key previously?"))
  + None => Err(println_err!("Unable to resume, have you already run rotate-key?"))
  }?;
  let verkey = match did_info["verkey"].as_str() {
  Some(verkey) => Ok(verkey.to_owned()),
  