Fix manpage mmap() syntax

Patch from Ian Gulliver <git@flamingcow.io>

Signed-off-by: Jens Axboe <axboe@kernel.dk>

src/io_uring.h

@@ -26,7 +26,6 @@ struct io_uring_sqe {
 		__kernel_rwf_t	rw_flags;
 		__u32		fsync_flags;
 		__u16		poll_events;
-		__u32		sync_range_flags;
 	};
 	__u64	user_data;	/* data to be passed back at completion time */
 	union {
@@ -39,8 +38,8 @@ struct io_uring_sqe {
  * sqe->flags
  */
 #define IOSQE_FIXED_FILE	(1U << 0)	/* use fixed fileset */
-#define IOSQE_IO_DRAIN		(1U << 1)	/* issue after inflight IO */
-#define IOSQE_IO_LINK		(1U << 2)	/* next IO depends on this one */
+#define IOSQE_IO_DRAIN		(1U << 1)
+#define IOSQE_IO_LINK		(1U << 2)
 
 /*
  * io_uring_setup() flags
@@ -57,7 +56,6 @@ struct io_uring_sqe {
 #define IORING_OP_WRITE_FIXED	5
 #define IORING_OP_POLL_ADD	6
 #define IORING_OP_POLL_REMOVE	7
-#define IORING_OP_SYNC_FILE_RANGE	8
 
 /*
  * sqe->fsync_flags
@@ -137,7 +135,5 @@ struct io_uring_params {
 #define IORING_UNREGISTER_BUFFERS	1
 #define IORING_REGISTER_FILES		2
 #define IORING_UNREGISTER_FILES		3
-#define IORING_REGISTER_EVENTFD		4
-#define IORING_UNREGISTER_EVENTFD	5
 
 #endif

src/liburing.h

@@ -7,7 +7,6 @@ extern "C" {
 
 #include <sys/uio.h>
 #include <signal.h>
-#include <string.h>
 #include <inttypes.h>
 #include "compat.h"
 #include "io_uring.h"