doc: NEWS: mention origin of touch -t ....60 bug

* NEWS: It is an old bug.

diff --git a/NEWS b/NEWS
index 963ea43d18c9c44ed5607f12d6b02cdfd6e1ab11..0f4481697cceab6e64a8aaf7ec40e3bcb4647325 100644 (file)
--- a/NEWS
+++ b/NEWS
@@ -10,6 +10,7 @@ GNU coreutils NEWS                                    -*- outline -*-
 
   touch -t [[CC]YY]MMDDhhmm[.ss] now accepts a timestamp string ending in .60,
   to accommodate leap seconds.
+  [the bug dates back to the initial implementation]
 
 ** Changes in behavior