Revert "Fix accidental two blank lines"

This reverts commit 43ab51cb.

src/unix/notbsd/linux/mod.rs

@@ -462,6 +462,7 @@ pub const LOG_NFACILITIES: ::c_int = 24;
 
 pub const SEM_FAILED: *mut ::sem_t = 0 as *mut sem_t;
 
+
 f! {
     pub fn CPU_ZERO(cpuset: &mut cpu_set_t) -> () {
         for slot in cpuset.bits.iter_mut() {