Missing text in iodepth_batch* help entries

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/options.c b/options.c
index f5bc9c0..fe890df 100644
--- a/options.c
+++ b/options.c
@@ -730,7 +730,7 @@
 		.alias	= "iodepth_batch_submit",
 		.type	= FIO_OPT_INT,
 		.off1	= td_var_offset(iodepth_batch),
-		.help	= "Number of IO to submit in one go",
+		.help	= "Number of IO buffers to submit in one go",
 		.parent	= "iodepth",
 		.minval	= 1,
 		.def	= "1",
@@ -739,7 +739,7 @@
 		.name	= "iodepth_batch_complete",
 		.type	= FIO_OPT_INT,
 		.off1	= td_var_offset(iodepth_batch_complete),
-		.help	= "Number of IO to retrieve in one go",
+		.help	= "Number of IO buffers to retrieve in one go",
 		.parent	= "iodepth",
 		.minval	= 0,
 		.def	= "1",