Fix some clippy warnings rust-ndarray#642

Author: alex179ohm

src/array_serde.rs

@@ -139,7 +139,7 @@ impl<S, Di> ArrayVisitor<S, Di> {
     }
 }
 
-static ARRAY_FIELDS: &'static [&'static str] = &["v", "dim", "data"];
+static ARRAY_FIELDS: &[&str] = &["v", "dim", "data"];
 
 /// **Requires crate feature `"serde-1"`**
 impl<'de, A, Di, S> Deserialize<'de> for ArrayBase<S, Di>

src/arrayformat.rs

@@ -52,13 +52,13 @@ enum PrintableCell {
 fn to_be_printed(length: usize, limit: usize) -> Vec<PrintableCell> {
     if length <= 2 * limit {
         (0..length)
-            .map(|x| PrintableCell::ElementIndex(x))
+            .map(PrintableCell::ElementIndex)
             .collect()
     } else {
         let mut v: Vec<PrintableCell> =
-            (0..limit).map(|x| PrintableCell::ElementIndex(x)).collect();
+            (0..limit).map(PrintableCell::ElementIndex).collect();
         v.push(PrintableCell::Ellipses);
-        v.extend((length - limit..length).map(|x| PrintableCell::ElementIndex(x)));
+        v.extend((length - limit..length).map(PrintableCell::ElementIndex));
         v
     }
 }