cargo fmt

src/lib.rs

 use libc;
-use libc::{__errno_location};
+use libc::__errno_location;
 use libc::{c_char, c_int, c_void, size_t, ssize_t};
 
-use std::str;
 use std::ffi::CStr;
+use std::str;
 
 /// Get error message string
 ///
@@ -64,7 +64,6 @@ pub fn perror(s: &str) {
     eprintln!("{}: {}", s, strerror(errnum));
 }
 
-
 /// Get error return value
 ///
 /// The function `get_errno` gets the current global error number `errno`, used
@@ -226,8 +225,6 @@ pub fn write(fildes: c_int, buf: &[c_char], nbyte: size_t) -> ssize_t {
     return unsafe { libc::write(fildes, buf, nbyte) };
 }
 
-
-
 /// Open file
 ///
 /// The `open()` function creates a connection between a file named by the
@@ -301,7 +298,6 @@ pub fn open(path: &str, oflag: c_int) -> c_int {
 //    return unsafe { libc::open(path, oflag, mode) };
 //}
 
-
 /// Close a file descriptor
 ///
 /// The `close()` function shall deallocate the file descriptor `fildes`.