Correct AddressFamily::System for AF_SYSTEM (and sockaddr_ctl).

Author: mwanner

src/sys/socket/addr.rs

@@ -720,7 +720,7 @@ impl SockAddr {
                 Some(AddressFamily::Netlink) => Some(SockAddr::Netlink(
                     NetlinkAddr(*(addr as *mut libc::sockaddr_nl)))),
                 #[cfg(any(target_os = "ios", target_os = "macos"))]
-                Some(AddressFamily::SysControl) => Some(SockAddr::SysControl(
+                Some(AddressFamily::System) => Some(SockAddr::SysControl(
                     SysControlAddr(*(addr as *mut sys_control::sockaddr_ctl)))),
                 // No other address families are supported, including netlink and syscontrol.
                 Some(_) => None,