aio.h fix typos in comments

[Jonny Grant]

Hello

Would a patch be supported to fix these comments? I can go through the formal patch process if you would like me to.

Also fix the spelling mistake "desriptor" twice 
, and "simultanious"

Also I removed  "This implementation follows the one in Irix. "
Don't think it is relevant, at least now it isn't.

Thanks
Jonny
-------------- next part --------------
--- aio.h.orig	2020-10-05 21:46:23.354543383 +0100
+++ aio.h_fix_typos	2020-10-05 22:11:30.415180225 +0100
@@ -33,7 +33,7 @@
 /* Asynchronous I/O control block.  */
 struct aiocb
 {
-  int aio_fildes;		/* File desriptor.  */
+  int aio_fildes;		/* File descriptor.  */
   int aio_lio_opcode;		/* Operation to be performed.  */
   int aio_reqprio;		/* Request priority offset.  */
   volatile void *aio_buf;	/* Location of buffer.  */
@@ -61,7 +61,7 @@
 #ifdef __USE_LARGEFILE64
 struct aiocb64
 {
-  int aio_fildes;		/* File desriptor.  */
+  int aio_fildes;		/* File descriptor.  */
   int aio_lio_opcode;		/* Operation to be performed.  */
   int aio_reqprio;		/* Request priority offset.  */
   volatile void *aio_buf;	/* Location of buffer.  */
@@ -82,12 +82,11 @@
 
 
 #ifdef __USE_GNU
-/* To customize the implementation one can use the following struct.
-   This implementation follows the one in Irix.  */
+/* To customize the implementation one can use the following struct. */
 struct aioinit
   {
     int aio_threads;		/* Maximal number of threads.  */
-    int aio_num;		/* Number of expected simultanious requests. */
+    int aio_num;		/* Number of expected simultaneous requests. */
     int aio_locks;		/* Not used.  */
     int aio_usedba;		/* Not used.  */
     int aio_debug;		/* Not used.  */