Watch command does not exit when interrupt signal is sent

[mky2]

After executing the command tectonic -X watch, when I press Ctrl + C sending the interrupt signal, it seems like watchexec has received the signal successfully, but the program does not terminate. Upon testing, it seems that adding action.quit_gracefully or action.quit in

tectonic/src/bin/tectonic/v2cli/commands/watch.rs

Lines 138 to 143 in 82484db

	if is_kill {
	action.list_jobs().for_each(|(_, job)| {
	job.stop();
	});
	return action;
	}

will do the job. But I'm not sure if it is considered a "hack", or perhaps it is an intended behaviour that the interrupt signal only stop the underlying jobs and not the actual tectonic program.