Allow '-help' as an alias for '--help'

Author: rocky

mathicsscript/__main__.py

@@ -243,7 +243,7 @@ def fmt_fun(query: Any) -> Any:
 case_sensitive = {"case_sensitive": False}
 
 
-@click.command()
+@click.command(context_settings=dict(help_option_names=["-h", "-help", "--help"]))
 @click.option(
     "--edit-mode",
     "-e",