Simulate trailing whitespace in empty greater blocks just like drawers.

src/parser/clock.rs

@@ -15,7 +15,6 @@ use super::Context;
 use crate::error::Res;
 use crate::parser::parser_with_context::parser_with_context;
 use crate::parser::util::get_consumed;
-
 use crate::parser::util::start_of_line;
 use crate::parser::Clock;