man: alphabetize the error section for io_uring_register
This also includes a couple of whitespace cleanups.  Most man pages
don't leave spaces between directives.
@@ -135,7 +135,23 @@ returns 0. On error, -1 is returned, and
is set accordingly.
.SH ERRORS
-
+.TP
+.B EBADF
+One or more fds in the
+.I fd
+array are invalid.
+.TP
+.B EBUSY
+.BR IORING_REGISTER_BUFFERS
+or
+.BR IORING_REGISTER_FILES
+was specified, but there were already buffers or files registered.
+.TP
+.B EFAULT
+buffer is outside of the process' accessible address space, or
+.I iov_len
+is greater than 1GiB.
+.TP
.B EINVAL
.BR IORING_REGISTER_BUFFERS
or
@@ -143,14 +159,14 @@ or
was specified, but
.I nr_args
is 0.
-
+.TP
.B EINVAL
.BR IORING_REGISTER_BUFFERS
was specified, but
.I nr_args
exceeds
.BR UIO_MAXIOV
-
+.TP
.B EINVAL
.BR IORING_UNREGISTER_BUFFERS
or
@@ -160,19 +176,7 @@ was specified, and
is non-zero or
.I arg
is non-NULL.
-
-.B ENXIO
-.BR IORING_UNREGISTER_BUFFERS
-or
-.BR IORING_UNREGISTER_FILES
-was specified, but there were no buffers or files registered.
-
-.B EBUSY
-.BR IORING_REGISTER_BUFFERS
-or
-.BR IORING_REGISTER_FILES
-was specified, but there were already buffers or files registered.
-
+.TP
.B ENOMEM
Insufficient kernel resources are available, or the caller had a
non-zero
@@ -182,16 +186,12 @@ permitted. This limit is not enforced if the process is privileged
(
.BR CAP_IPC_LOCK
).
-
-.B EBADF
-One or more fds in the
-.I fd
-array are invalid.
-
-.B EFAULT
-buffer is outside of the process' accessible address space, or
-.I iov_len
-is greater than 1GiB.
-
+.TP
+.B ENXIO
+.BR IORING_UNREGISTER_BUFFERS
+or
+.BR IORING_UNREGISTER_FILES
+was specified, but there were no buffers or files registered.
+.TP
.B EOPNOTSUPP
User buffers point to file-backed memory.
