* doc/lispref/buffers.texi (Modification Time): Fix
documentation of 'visited-file-modtime'. (Bug#34055)
too. For instance, in a Dired buffer listing a directory, it returns
the last modification time of that directory, as recorded by Dired.
-If the buffer is not visiting a file, this function returns @minus{}1.
+If the buffer is visiting a file that doesn't exist, this function
+returns @minus{}1.
@end defun
@defun set-visited-file-modtime &optional time