actually exit the shell with ctrl+d

src/main.rs

@@ -334,11 +334,11 @@ fn main() -> Result<()> {
                                     prompt.print()?;
                                     line.clear();
                                 }
-                            } else if key_code == 67
+                            } else if key_code == 68
                                 && (modifiers & Console::LEFT_CTRL_PRESSED
                                     == Console::LEFT_CTRL_PRESSED)
                             {
-                                // this is CTRL+C
+                                // this is CTRL+D
                                 CloseHandle(stdout);
                                 return Ok(());
                             } else if key_code == 74