Minor cosmetic changes

src/control.rs

@@ -31,17 +31,27 @@ pub trait TermControl {
     /// Go to a given position.
     fn goto(&mut self, x: u16, y: u16) -> IoResult<usize> {
         self.csi(&[
-             (x / 10000) as u8 + b'0', (x / 1000) as u8 % 10 + b'0', (x / 100) as u8 % 10 + b'0', (x / 10) as u8 % 10 + b'0', x as u8 % 10 + b'0',
-             b';',
-             (y / 10000) as u8 + b'0', (y / 1000) as u8 % 10 + b'0', (y / 100) as u8 % 10 + b'0', (y / 10) as u8 % 10 + b'0', y as u8 % 10 + b'0',
-             b'H',
+            b'0' + (x / 10000) as u8,
+            b'0' + (x / 1000) as u8 % 10,
+            b'0' + (x / 100) as u8 % 10,
+            b'0' + (x / 10) as u8 % 10,
+            b'0' + x as u8 % 10,
+            b';',
+            b'0' + (y / 10000) as u8,
+            b'0' + (y / 1000) as u8 % 10,
+            b'0' + (y / 100) as u8 % 10,
+            b'0' + (y / 10) as u8 % 10,
+            b'0' + y as u8 % 10,
+            b'H',
         ])
     }
     /// Set graphic rendition.
     fn rendition(&mut self, r: u8) -> IoResult<usize> {
         self.csi(&[
-             r / 100 + b'0', r / 10 % 10 + b'0', r % 10 + b'0',
-             b'm',
+            b'0' + r / 100,
+            b'0' + r / 10 % 10,
+            b'0' + r % 10,
+            b'm',
         ])
     }
     /// Set foreground color