More errors in translation.

[Marcin Jessa]

Hi.

Once again in wndMain. The line should say "...to retrieve up-to
date..."

If you're using DesktopBSD's Software tool the first time,(new line)
please select a package list server under "Settings" and(new line)
use "Update package list via Internet" retrieve up-to-date(new line)
package and security information.

Marcin