man: Correct markup of MPI_Neighbor_allgather

Signed-off-by: KAWASHIMA Takahiro <t-kawashima@jp.fujitsu.com>

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

@@ -33,13 +33,14 @@ MPI_NEIGHBOR_ALLGATHER(\fISENDBUF\fP,\fI SENDCOUNT\fP,\fI SENDTYPE\fP,\fI RECVBU
 	INTEGER	\fIIERROR\fP
 
 MPI_INEIGHBOR_ALLGATHER(\fISENDBUF\fP,\fI SENDCOUNT\fP,\fI SENDTYPE\fP,\fI RECVBUF\fP,\fI RECVCOUNT\fP,\fI
-		RECVTYPE\fP,\fI COMM\fP, \fPREQUEST\fI,\fI IERROR\fP)
+		RECVTYPE\fP,\fI COMM\fP, \fIREQUEST\fP,\fI IERROR\fP)
 	<type>	\fISENDBUF\fP (*), \fIRECVBUF\fP (*)
 	INTEGER	\fISENDCOUNT\fP,\fI SENDTYPE\fP,\fI RECVCOUNT\fP,\fI RECVTYPE\fP,\fI COMM\fP,
 	INTEGER	\fIREQUEST, IERROR\fP
 
 .fi
 .SH Fortran 2008 Syntax
+.nf
 USE mpi_f08
 MPI_Neighbor_allgather(\fIsendbuf\fP, \fIsendcount\fP, \fIsendtype\fP, \fIrecvbuf\fP, \fIrecvcount\fP,
 		\fIrecvtype\fP, \fIcomm\fP, \fIierror\fP)