merge use statements

src/sys/socket/addr.rs

@@ -812,8 +812,7 @@ pub mod netlink {
 #[cfg(any(target_os = "ios", target_os = "macos"))]
 pub mod sys_control {
     use ::sys::socket::addr::{AddressFamily};
-    use libc;
-    use libc::{c_uchar, uint16_t, uint32_t};
+    use libc::{self, c_uchar, uint16_t, uint32_t};
     use std::{fmt, mem};
     use std::hash::{Hash, Hasher};
     use std::os::unix::io::RawFd;

src/sys/socket/mod.rs

@@ -5,11 +5,10 @@ use {Error, Errno, Result};
 use features;
 use fcntl::{fcntl, FD_CLOEXEC, O_NONBLOCK};
 use fcntl::FcntlArg::{F_SETFD, F_SETFL};
-use libc::{c_void, c_int, socklen_t, size_t, pid_t, uid_t, gid_t};
+use libc::{self, c_void, c_int, socklen_t, size_t, pid_t, uid_t, gid_t};
 use std::{mem, ptr, slice};
 use std::os::unix::io::RawFd;
 use sys::uio::IoVec;
-use libc;
 
 mod addr;
 mod ffi;

src/sys/socket/sockopt.rs

@@ -1,8 +1,7 @@
 use super::{ffi, GetSockOpt, SetSockOpt};
-use libc;
 use {Errno, Result};
 use sys::time::TimeVal;
-use libc::{c_int, uint8_t, c_void, socklen_t};
+use libc::{self, c_int, uint8_t, c_void, socklen_t};
 use std::mem;
 use std::os::unix::io::RawFd;