[gnumeric] SheetStyle: doc improvement.

[Morten Welinder <mortenw src gnome org>]

commit e2ea8b539f4c449bd4f155bf579ddd3897f0523c
Author: Morten Welinder <terra gnome org>
Date:   Fri Dec 28 10:31:54 2012 -0500

    SheetStyle: doc improvement.

 src/sheet-style.c |    9 +++++----
 1 files changed, 5 insertions(+), 4 deletions(-)
---
diff --git a/src/sheet-style.c b/src/sheet-style.c
index e9abf2f..b6209c1 100644
--- a/src/sheet-style.c
+++ b/src/sheet-style.c
@@ -2765,11 +2765,12 @@ internal_style_list (Sheet const *sheet, GnmRange const *r,
 
 /**
  * sheet_style_get_range:
- * @sheet:
- * @range:
+ * @sheet: the sheet in which to find styles
+ * @range: optional range to scan
  *
- * Get a list of rectangles and their associated styles
- * Caller is responsible for freeing.
+ * Get a list of rectangles and their associated styles.
+ * Caller is responsible for freeing.  Note that when a range is given,
+ * the resulting ranges are relative to the input range.
  *
  * Returns: (transfer full):
  */