Ignore needless_late_init Clippy lint

    error: unneeded late initalization
       --> tests/../src/lexical/float.rs:173:9
        |
    173 |         let exp: u64;
        |         ^^^^^^^^^^^^^
        |
        = note: `-D clippy::needless-late-init` implied by `-D clippy::all`
        = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_late_init
    help: declare `exp` here
        |
    174 |         let exp: u64 = if (fp.exp == F::DENORMAL_EXPONENT) && (fp.mant & F::HIDDEN_BIT_MASK.as_u64()) == 0 {
        |         ++++++++++++++
    help: remove the assignments from the branches
        |
    175 ~             0
    176 |         } else {
    177 ~             (fp.exp + F::EXPONENT_BIAS) as u64
        |
    help: add a semicolon after the `if` expression
        |
    178 |         };
        |          +

src/lib.rs

@@ -312,6 +312,7 @@
     clippy::match_like_matches_macro,
     clippy::match_single_binding,
     clippy::needless_doctest_main,
+    clippy::needless_late_init,
     clippy::transmute_ptr_to_ptr,
     clippy::unnecessary_wraps,
     // clippy bug: https://github.com/rust-lang/rust-clippy/issues/5704

tests/lexical.rs

@@ -10,6 +10,7 @@
     clippy::float_cmp,
     clippy::if_not_else,
     clippy::module_name_repetitions,
+    clippy::needless_late_init,
     clippy::shadow_unrelated,
     clippy::similar_names,
     clippy::single_match_else,