fix vecUnaccepted check in printf_packages

regression from
    commit 1b0beef8
    Date:   Tue Mar 6 22:36:02 2018 +0100
    Use for-range loops in desktop (part2)

Change-Id: I684462f4473eb57db589033795dd4f91d8897389
Reviewed-on: https://gerrit.libreoffice.org/57109
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>

desktop/source/pkgchk/unopkg/unopkg_misc.cxx

@@ -323,6 +323,7 @@ void printf_packages(
             else
                 printf_package( extension, xCmdEnv, level );
             dp_misc::writeConsole("\n");
+            ++index;
         }
     }
 }