Add space between datetime and filename for listings

src/listing.rs

@@ -205,7 +205,7 @@ impl fmt::Display for Listing {
             },
         )?;
         match NaiveDateTime::from_timestamp_opt(self.mtime as i64, 0) {
-            Some(dt) => write!(f, "{dt}")?,
+            Some(dt) => write!(f, "{dt} ")?,
             _ => write!(f, "{:>19} ", self.mtime)?,
         }
         match self.kind {
@@ -324,7 +324,7 @@ impl Listing {
             },
         );
         match NaiveDateTime::from_timestamp_opt(self.mtime as i64, 0) {
-            Some(dt) => print!("{dt}"),
+            Some(dt) => print!("{dt} "),
             _ => print!("{:>19} ", self.mtime),
         }
         let mut stdout = StandardStream::stdout(ColorChoice::Auto);