Fix some in:/out: comments.

Approved by:	Marko

include/rem0rec.ic

@@ -795,7 +795,8 @@ UNIV_INLINE
 void
 rec_offs_set_n_alloc(
 /*=================*/
-	ulint*	offsets,	/* in: array for rec_get_offsets() */
+	ulint*	offsets,	/* out: array for rec_get_offsets(),
+				must be allocated */
 	ulint	n_alloc)	/* in: number of elements */
 {
 	ut_ad(offsets);
@@ -1282,7 +1283,8 @@ UNIV_INLINE
 void
 rec_offs_set_n_fields(
 /*==================*/
-	ulint*	offsets,	/* in: array returned by rec_get_offsets() */
+	ulint*	offsets,	/* in/out: array returned by
+				rec_get_offsets() */
 	ulint	n_fields)	/* in: number of fields */
 {
 	ut_ad(offsets);

rem/rem0rec.c

@@ -153,7 +153,6 @@ static
 void
 rec_init_offsets(
 /*=============*/
-				/* out: the offsets */
 	rec_t*		rec,	/* in: physical record */
 	dict_index_t*	index,	/* in: record descriptor */
 	ulint*		offsets)/* in/out: array of offsets;
@@ -304,7 +303,7 @@ rec_get_offsets_func(
 				/* out: the new offsets */
 	rec_t*		rec,	/* in: physical record */
 	dict_index_t*	index,	/* in: record descriptor */
-	ulint*		offsets,/* in: array consisting of offsets[0]
+	ulint*		offsets,/* in/out: array consisting of offsets[0]
 				allocated elements, or an array from
 				rec_get_offsets(), or NULL */
 	ulint		n_fields,/* in: maximum number of initialized fields