man/io_uring_prep_madvise.3: posix_madvise -> madvise
`io_uring_prep_madvise` prepares an asynchronous madvise(2),
not posix_madvise(3).
@@ -29,7 +29,7 @@ length in bytes, giving it the advise located in
.IR advice .
This function prepares an async
-.BR posix_madvise (2)
+.BR madvise (2)
request. See that man page for details.
.SH RETURN VALUE
@@ -53,4 +53,4 @@ field.
.BR io_uring_get_sqe (3),
.BR io_uring_submit (3),
.BR io_uring_register (2),
-.BR posix_madvise (2)
+.BR madvise (2)
