message: Remove debug log and fix error message
diff: // See the License for the specific language governing permissions and
  // limitations under the License.
  -use std::{fs, io};
  +use std::{env, fs, io};
  fn main() -> io::Result<()> {
  - let args = std::env::args();
  - println!("args: {:?}", args);
  - for arg in args.skip(1) {
  - let greet = fs::read_to_string(&arg).unwrap_or(format!("no such file: {}", arg));
  + for arg in env::args().skip(1) {
  + let greet = fs::read_to_string(&arg).unwrap_or(format!("No such file: {}", arg));
  ferris_says::say(greet.as_bytes(), 100, &mut std::io::stdout())?;
  }
  Ok(())
  