* pcmpl-unix.el (pcmpl-unix-read-passwd-file): Doc fix.

lisp/ChangeLog

+2010-01-16  Jari Aalto  <jari.aalto@cante.net>
+
+	* pcmpl-unix.el (pcmpl-unix-read-passwd-file): Doc fix.
+
 2010-01-16  Chong Yidong  <cyd@stupidchicken.com>
 
 	* emacs-lisp/cl-macs.el (defstruct): Doc fix (Bug#5267).

lisp/pcmpl-unix.el

@@ -85,7 +85,10 @@ with the SSH option \"HashKnownHosts no\"."
   (while (pcomplete-here (funcall pcomplete-command-completion-function))))
 
 (defun pcmpl-unix-read-passwd-file (file)
-  "Return an alist correlating gids to group names in FILE."
+  "Return an alist correlating gids to group names in FILE.
+
+If FILE is in hashed format (as described in the OpenSSH
+documentation), this function returns nil."
   (let (names)
     (when (file-readable-p file)
       (with-temp-buffer