Ignore needless_return clippy lint

warning: unneeded `return` statement
       --> src/main.rs:106:9
        |
    106 |         return Err(Error::Io(err));
        |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
        |
        = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
        = note: `#[warn(clippy::needless_return)]` on by default
    help: remove `return`
        |
    106 -         return Err(Error::Io(err));
    106 +         Err(Error::Io(err))
        |

src/main.rs

@@ -7,6 +7,7 @@
     clippy::match_same_arms, // https://github.com/rust-lang/rust-clippy/issues/10327
     clippy::module_name_repetitions,
     clippy::needless_pass_by_value,
+    clippy::needless_return,
     clippy::option_option,
     clippy::struct_excessive_bools,
     clippy::too_many_lines,