Updated snapshots.

tests/snapshots/output/changes_header.snapshot.txt

@@ -0,0 +1,37 @@
+  File: sample.rs
+  struct Rectangle {
+      width: u32,
+      height: u32,
+  }
+  
+_ fn main() {
+      let rect1 = Rectangle { width: 30, height: 50 };
+  
+      println!(
+~         "The perimeter of the rectangle is {} pixels.",
+~         perimeter(&rect1)
+      );
++     println!(r#"This line contains invalid utf8:  "<22><><EFBFBD><EFBFBD><EFBFBD>"#;
+  }
+  
+  fn area(rectangle: &Rectangle) -> u32 {
+      rectangle.width * rectangle.height
+  }
+  
++ fn perimeter(rectangle: &Rectangle) -> u32 {
++     (rectangle.width + rectangle.height) * 2
++ }
++ 
+  // Tab alignment:
+  /*
+          Indent
+          1       2       3       4
+  1       ?
+  22      ?
+  333     ?
+  4444    ?
+  55555   ?
+  666666  ?
+  7777777 ?
+  88888888        ?
+~ */