[librsvg] cargo-clippy: derive(Copy) for Align1D

[Federico Mena Quintero <federico src gnome org>]

commit 25635cabfffbcc03f3c4b828909fd4eae273cbc4
Author: Federico Mena Quintero <federico gnome org>
Date:   Thu Feb 22 13:22:16 2018 -0600

    cargo-clippy: derive(Copy) for Align1D

 rust/src/aspect_ratio.rs | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/rust/src/aspect_ratio.rs b/rust/src/aspect_ratio.rs
index 4be55401..aea983eb 100644
--- a/rust/src/aspect_ratio.rs
+++ b/rust/src/aspect_ratio.rs
@@ -51,6 +51,7 @@ pub struct AspectRatio {
     pub align: Align
 }
 
+#[derive(Debug, Copy, Clone)]
 enum Align1D {
     Min,
     Mid,