use human_readable_name for error hint

Author: svlandeg

tests/test_tutorial/test_parameter_types/test_datetime/test_tutorial001.py

@@ -42,10 +42,7 @@ def test_main_datetime_object():
 def test_invalid():
     result = runner.invoke(app, ["july-19-1989"])
     assert result.exit_code != 0
-    assert (
-        "Invalid value for 'BIRTH:[%Y-%m-%d|%Y-%m-%dT%H:%M:%S|%Y-%m-%d %H:%M:%S]':"
-        in result.output
-    )
+    assert "Invalid value for 'birth'" in result.output
     assert "'july-19-1989' does not match the formats" in result.output
     assert "%Y-%m-%d" in result.output
     assert "%Y-%m-%dT%H:%M:%S" in result.output

typer/core.py

@@ -428,7 +428,7 @@ def get_usage_pieces(self, ctx: _click.Context) -> list[str]:
         return [self.make_metavar(ctx, usage=True)]
 
     def get_error_hint(self, ctx: _click.Context) -> str:
-        return f"'{self.make_metavar(ctx)}'"
+        return f"'{self.human_readable_name}'"
 
     def add_to_parser(self, parser: _OptionParser, ctx: _click.Context) -> None:
         parser.add_argument(dest=self.name, nargs=self.nargs, obj=self)