Update v3/docs/opt-trace-format.md

pgbovine · pgbovine · commit 3f84eb443f02 · 2012-09-18T14:17:38.000-07:00
diff --git a/v3/docs/opt-trace-format.md b/v3/docs/opt-trace-format.md
@@ -730,8 +730,8 @@ provides a mapping from global variable names to their values.
 during execution. The global analogue for this field is `ordered_globals`. (I suppose this field should be named
 `ordered_locals`, but I haven't gotten around to renaming yet.)
 
-`frame_id` is a unique integer that identifies this frame; the first executed function gets an ID of 1, and then
-subsequent calls get successively increasing IDs.
+`frame_id` is an integer that *uniquely* identifies this frame; the first function call (of *any* function) gets
+a frame ID of 1, and then subsequent calls get successively increasing frame IDs.
 
 `unique_hash` is a unique string that identifies this frame. For now, a simple way
 to construct `unique_hash` is by concatenating the frame's function name with `frame_id`.
