message: test: check cargo uninstall package opt with empty value
diff: @@ -1181,6 +1181,18 @@ fn uninstall_multiple_and_specifying_bin() {
  .run();
  }
  +#[cargo_test]
  +fn uninstall_with_empty_pakcage_option() {
  + cargo_process("uninstall -p")
  + .with_status(101)
  + .with_stderr("\
  +[ERROR] \"--package <SPEC>\" requires a SPEC format value.
  +Run `cargo help pkgid` for more information about SPEC format.
  +",
  + )
  + .run();
  +}
  +
  #[cargo_test]
  fn uninstall_multiple_and_some_pkg_does_not_exist() {
  pkg("foo", "0.0.1");
  