man: Correct wrong argument order.

ompi/mpi/man/man3/MPI_Alltoallv.3in

@@ -40,7 +40,7 @@ MPI_ALLTOALLV(\fISENDBUF, SENDCOUNTS, SDISPLS, SENDTYPE,
 	INTEGER	\fICOMM, IERROR\fP
 
 MPI_IALLTOALLV(\fISENDBUF, SENDCOUNTS, SDISPLS, SENDTYPE,
-	RECVBUF, RECVCOUNTS, RDISPLS, RECVTYPE, REQUEST, COMM, IERROR\fP)
+	RECVBUF, RECVCOUNTS, RDISPLS, RECVTYPE, COMM, REQUEST, IERROR\fP)
 
 	<type>	\fISENDBUF(*), RECVBUF(*)\fP
 	INTEGER	\fISENDCOUNTS(*), SDISPLS(*), SENDTYPE\fP