logging: update "Grouping Logs by Request" docs
Fixes: 1598
Change-Id: Ibdb39720230286221d1971d948d7d9764dddaa6f
Reviewed-on: https://code-review.googlesource.com/c/gocloud/+/46850
Reviewed-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Jean de Klerk <deklerk@google.com>
diff --git a/logging/doc.go b/logging/doc.go
index 93bbd82..2735cba 100644
--- a/logging/doc.go
+++ b/logging/doc.go
@@ -121,9 +121,9 @@
- Parent entries must have HTTPRequest.Request populated. (Strictly speaking, only the URL is necessary.)
-- A child entry's timestamp must be within the time interval covered by the parent request (i.e., older
-than parent.Timestamp, and newer than parent.Timestamp - parent.HTTPRequest.Latency, assuming the
-parent timestamp marks the end of the request.
+- A child entry's timestamp must be within the time interval covered by the parent request. (i.e., before
+the parent.Timestamp and after the parent.Timestamp - parent.HTTPRequest.Latency. This assumes the
+parent.Timestamp marks the end of the request.)
- The trace field must be populated in all of the entries and match exactly.
