Update #[derive] names

1 files changed, 3 insertions, 8 deletions

diff --git a/src/column.rs b/src/column.rs
index 881712d..8e97aac 100644
--- a/src/column.rs
+++ b/src/column.rs
@@ -2,7 +2,7 @@ use std::iter::repeat;
 
 use ansi_term::Style;
 
-#[derive(PartialEq, Show)]
+#[derive(PartialEq, Debug, Copy)]
 pub enum Column {
     Permissions,
     FileName,
@@ -14,25 +14,20 @@ pub enum Column {
     Inode,
 }
 
-impl Copy for Column { }
-
-#[derive(PartialEq, Show)]
+#[derive(PartialEq, Debug, Copy)]
 pub enum SizeFormat {
     DecimalBytes,
     BinaryBytes,
     JustBytes,
 }
 
-impl Copy for SizeFormat { }
-
 /// Each column can pick its own **Alignment**. Usually, numbers are
 /// right-aligned, and text is left-aligned.
+#[derive(Copy)]
 pub enum Alignment {
     Left, Right,
 }
 
-impl Copy for Alignment { }
-
 impl Column {
 
     /// Get the alignment this column should use.