Fix #f/() bug in VC-COMMAND-ARGUMENTS.

diff --git a/v7/src/edwin/vc.scm b/v7/src/edwin/vc.scm
index 712e19a5cae9f5c7e3017449e2458e2f3129b577..66800d2b925dd509dcbf8f0ef3c7a3dca86bf8df 100644 (file)
--- a/v7/src/edwin/vc.scm
+++ b/v7/src/edwin/vc.scm
@@ -1,6 +1,6 @@
 ;;; -*-Scheme-*-
 ;;;
-;;;    $Id: vc.scm,v 1.14 1994/04/30 21:13:55 cph Exp $
+;;;    $Id: vc.scm,v 1.15 1994/09/09 01:21:50 adams Exp $
 ;;;
 ;;;    Copyright (c) 1994 Massachusetts Institute of Technology
 ;;;
@@ -1237,7 +1237,8 @@ the value of vc-log-mode-hook."
 
 (define (vc-command-arguments arguments)
   (append-map (lambda (argument)
-               (cond ((string? argument) (list argument))
+               (cond ((not argument) '())
+                     ((string? argument) (list argument))
                      ((pathname? argument) (list (->namestring argument)))
                      ((list? argument) (vc-command-arguments argument))
                      (else (error "Ill-formed command argument:" argument))))