? colorbox_drushunzip.patch
Index: colorbox.drush.inc
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/colorbox/drush/colorbox.drush.inc,v
retrieving revision 1.4
diff -u -p -r1.4 colorbox.drush.inc
--- colorbox.drush.inc	16 May 2010 15:08:00 -0000	1.4
+++ colorbox.drush.inc	27 May 2010 21:46:27 -0000
@@ -72,7 +72,7 @@ function colorbox_drush_help($section) {
  *
  */
 function drush_colorbox_plugin() {
-  if (!drush_shell_exec('type -P unzip')) {
+  if (drush_shell_exec('type -P unzip')) {
     return drush_set_error(dt('Missing dependency: unzip. Install it before using this command.'));
   }