Fix align of in6_addr on Windows
Fix align of in6_addr on Windows

rust-lang/libc,DiamondLovesYou/libc,cactorium/libc,DiamondLovesYou/libc,philippkeller/libc,superriva/libc,anatol/libc,cybergeek94/libc,DiamondLovesYou/libc,rust-lang-nursery/libc,edunham/libc,philippkeller/libc,rust-lang/libc,diwic/libc,mneumann/libc,rust-lang-nursery/libc,cactorium/libc,mneumann/libc,edunham/libc,philippkeller/libc,cactorium/libc,rust-lang/libc,diwic/libc,anatol/libc,rust-lang-nursery/libc,diwic/libc,edunham/libc,zethra/libc,cybergeek94/libc,mneumann/libc,cybergeek94/libc,superriva/libc,superriva/libc,zethra/libc,edunham/libc,anatol/libc,diwic/libc,DiamondLovesYou/libc,zethra/libc