IB/iser: Combine substrings for three messages

The script "checkpatch.pl" pointed information out like the following.

WARNING: quoted string split across lines

Thus fix the affected source code places.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Reviewed-by: Max Gurtovoy <maxg@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>

drivers/infiniband/ulp/iser/iser_initiator.c

@@ -142,8 +142,7 @@ iser_prepare_write_cmd(struct iscsi_task *task,
 			hdr->write_va = cpu_to_be64(mem_reg->sge.addr + unsol_sz);
 		}
 
-		iser_dbg("Cmd itt:%d, WRITE tags, RKEY:%#.4X "
-			 "VA:%#llX + unsol:%d\n",
+		iser_dbg("Cmd itt:%d, WRITE tags, RKEY:%#.4X VA:%#llX + unsol:%d\n",
 			 task->itt, mem_reg->rkey,
 			 (unsigned long long)mem_reg->sge.addr, unsol_sz);
 	}
@@ -473,8 +472,7 @@ int iser_send_data_out(struct iscsi_conn *conn,
 	tx_desc->num_sge = 2;
 
 	if (buf_offset + data_seg_len > iser_task->data[ISER_DIR_OUT].data_len) {
-		iser_err("Offset:%ld & DSL:%ld in Data-Out "
-			 "inconsistent with total len:%ld, itt:%d\n",
+		iser_err("Offset:%ld & DSL:%ld in Data-Out inconsistent with total len:%ld, itt:%d\n",
 			 buf_offset, data_seg_len,
 			 iser_task->data[ISER_DIR_OUT].data_len, itt);
 		err = -EINVAL;
@@ -612,8 +610,8 @@ iser_check_remote_inv(struct iser_conn *iser_conn,
 			 iser_conn, rkey);
 
 		if (unlikely(!iser_conn->snd_w_inv)) {
-			iser_err("conn %p: unexpected remote invalidation, "
-				 "terminating connection\n", iser_conn);
+			iser_err("conn %p: unexpected remote invalidation, terminating connection\n",
+				 iser_conn);
 			return -EPROTO;
 		}