Fix more misspelled comments and strings.

src/libnative/io/pipe_win32.rs

@@ -50,7 +50,7 @@
 //! it sounded like named pipes just weren't built for this kind of interaction,
 //! and the suggested solution was to use overlapped I/O.
 //!
-//! I don't realy know what overlapped I/O is, but my basic understanding after
+//! I don't really know what overlapped I/O is, but my basic understanding after
 //! reading about it is that you have an external Event which is used to signal
 //! I/O completion, passed around in some OVERLAPPED structures. As to what this
 //! is, I'm not exactly sure.

src/libnative/io/process.rs

@@ -923,7 +923,7 @@ fn waitpid(pid: pid_t, deadline: u64) -> IoResult<rtio::ProcessExit> {
     // Register a new SIGCHLD handler, returning the reading half of the
     // self-pipe plus the old handler registered (return value of sigaction).
     //
-    // Be sure to set up the self-pipe first because as soon as we reigster a
+    // Be sure to set up the self-pipe first because as soon as we register a
     // handler we're going to start receiving signals.
     fn register_sigchld() -> (libc::c_int, c::sigaction) {
         unsafe {