doc: NEWS: note when the id/groups bug was introduced

* NEWS (Bug fixes): Note the first affected release.
The id bug was introduced by commit v8.0-112-g719a95a.

diff --git a/NEWS b/NEWS
index 1c00d964039557c3cd874360c977f02a6f5bbe3c..8e42c63268f69853cdbfe92bb4f0153ca7be4d6c 100644 (file)
--- a/NEWS
+++ b/NEWS
@@ -9,7 +9,7 @@ GNU coreutils NEWS                                    -*- outline -*-
   that ID would be neither real nor effective.  For example, when run
   set-GID, or in a session for which the default group has just been
   changed, the new group ID would be listed, even though it is not
-  yet effective.
+  yet effective. [bug introduced in coreutils-8.1]
 
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