doc: fix description of tail -f on truncated files

* doc/coreutils.texi (tail invocation): Update to match
the new behavior following commit v8.23-189-gb28ff6a

diff --git a/doc/coreutils.texi b/doc/coreutils.texi
index 91f2e6d78053f6e842fca69787d856976824ebd8..f543787c7855d372f9070ad4fd0ad27efb3fb807 100644 (file)
--- a/doc/coreutils.texi
+++ b/doc/coreutils.texi
@@ -3078,7 +3078,8 @@ the need for any periodic reopening.
 
 No matter which method you use, if the tracked file is determined to have
 shrunk, @command{tail} prints a message saying the file has been truncated
-and resumes tracking the end of the file from the newly-determined endpoint.
+and resumes tracking from the start of the file, assuming it has been
+truncated to 0, which is the usual truncation operation for log files.
 
 When a file is removed, @command{tail}'s behavior depends on whether it is
 following the name or the descriptor.  When following by name, tail can