V7 fails to build on Windows (regression)

[igiona]

error[E0433]: failed to resolve: use of undeclared type `ErrorKind`
   --> C:\Users\gimpe\.cargo\registry\src\index.crates.io-6f17d22bba15001f\syslog-7.0.0\src/lib.rs:264:9
    |
264 |     Err(ErrorKind::UnsupportedPlatform)?
    |         ^^^^^^^^^ use of undeclared type `ErrorKind`
    |
help: consider importing this enum
    |
57  + use io::ErrorKind;
    |

It's clear that the Log functionality will not work on windows, the build shouldn't be broken though imho.