tidy a bit

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

diff --git a/src/bin/otter.rs b/src/bin/otter.rs
index 7ec81b2224d6b360ce0fb4d08ea686df10af519d..1c1cc82cf82fcf58d855ecda49cb359b522e7663 100644 (file)
--- a/src/bin/otter.rs
+++ b/src/bin/otter.rs
@@ -307,7 +307,7 @@ impl ConnForGame {
     let insns = vec![ MgmtGameInstruction::ListPieces ];
     let mut responses = self.alter_game(insns, None)?;
     match responses.as_mut_slice() {
-      &mut [MgmtGameResponse::Pieces(ref mut pieces)] => {
+      [MgmtGameResponse::Pieces(pieces)] => {
         return mem::take(pieces)
       },
       wat => Err(anyhow!("ListPieces => {:?}", &wat))?,