Fixed system messages printing an extra line for no reason

src/prompt/readline/mod.rs

@@ -164,6 +164,7 @@ impl ShedVi {
       history: History::new()?,
       needs_redraw: true,
     };
+		new.writer.flush_write("\n")?; // ensure we start on a new line, in case the previous command didn't end with a newline
     new.print_line(false)?;
     Ok(new)
   }

src/signal.rs

@@ -280,7 +280,6 @@ pub fn child_exited(pid: Pid, status: WtStat) -> ShResult<()> {
     if is_fg {
       take_term()?;
     } else {
-      println!();
       let job_order = read_jobs(|j| j.order().to_vec());
       let result = read_jobs(|j| j.query(JobID::Pgid(pgid)).cloned());
       if let Some(job) = result {