# HG changeset patch
# User Jordi Gutiérrez Hermoso <jordigh@gmail.com>
# Date 1313084951 18000
# Node ID 93a1d99183fbff4cec6c3d798e8aa21f6a1a3291
# Parent  8b5b85e262467637b13398f77709736836a1973d
tar.m: Fix validation of inputs (bug #33988)

diff --git a/scripts/miscellaneous/tar.m b/scripts/miscellaneous/tar.m
--- a/scripts/miscellaneous/tar.m
+++ b/scripts/miscellaneous/tar.m
@@ -42,7 +42,7 @@
     files = cellstr (files);
   endif
 
-  if (ischar (tarfile) && iscellstr (files) && ischar (root))
+  if (! (ischar (tarfile) && iscellstr (files) && ischar (root)))
     error ("tar: all arguments must be character strings");
   endif