Auto merge of #74 - plutomonkey:clippy, r=ebfull

Update clippy and fix code indentation.

(The code indentation issue was not caught by clippy -- I noticed it by chance!)

Cargo.toml

@@ -14,7 +14,7 @@ repository = "https://github.com/ebfull/pairing"
 [dependencies]
 rand = "0.3"
 byteorder = "1"
-clippy = { version = "0.0.174", optional = true }
+clippy = { version = "0.0.186", optional = true }
 
 [features]
 unstable-features = ["expose-arith"]

src/bls12_381/fr.rs

@@ -573,7 +573,7 @@ impl SqrtField for Fr {
                 let mut m = S;
 
                 while t != Self::one() {
-                let mut i = 1;
+                    let mut i = 1;
                     {
                         let mut t2i = t;
                         t2i.square();

src/lib.rs

@@ -11,6 +11,7 @@
 #![cfg_attr(feature = "clippy", allow(inline_always))]
 #![cfg_attr(feature = "clippy", allow(too_many_arguments))]
 #![cfg_attr(feature = "clippy", allow(unreadable_literal))]
+#![cfg_attr(feature = "clippy", allow(many_single_char_names))]
 #![cfg_attr(feature = "clippy", allow(new_without_default_derive))]
 
 // Force public structures to implement Debug