Typo fix

src/hb-ot-layout.cc

diff --git a/src/hb-ot-layout.cc b/src/hb-ot-layout.cc
index 3651c24..fbdedd0 100644
--- a/src/hb-ot-layout.cc
+++ b/src/hb-ot-layout.cc
@@ -613,7 +613,7 @@
  * hb_ot_layout_table_find_feature:
  * @face: #hb_face_t to work upon
  * @table_tag: #HB_OT_TAG_GSUB or #HB_OT_TAG_GPOS
- * @feature_tag: The #hb_tag_t og the requested feature tag
+ * @feature_tag: The #hb_tag_t of the requested feature tag
  * @feature_index: (out): The index of the requested feature
  *
  * Fetches the index for a given feature tag in the specified face's GSUB table