Remove unnecessary scope

src/controller.rs

@@ -84,7 +84,6 @@ impl<'b> Controller<'b> {
         let mut line_number: usize = 1;
 
         while reader.read_until(b'\n', &mut line_buffer)? > 0 {
-            {
             match line_ranges {
                 &Some(ref range) => {
                     if line_number < range.lower {
@@ -104,7 +103,6 @@ impl<'b> Controller<'b> {
             }
 
             line_number += 1;
-            }
             line_buffer.clear();
         }
         Ok(())