ddns-scripts: Ensure busybox wget dependency

ddns-scripts currently fails if GNU Wget is installed. Ensure that
ddns-scripts depends on, and prefers BusyBox Wget to GNU Wget.

While at it, fix small typo too: s/ERRROR/ERROR/

Signed-off-by: Jonathan McCrohan <jmccrohan@gmail.com>
[packages] wget: Fix pod2man errors with Perl 5.18

GNU Wget fails to compile using Perl 5.18, leading to errors such as:
wget.pod around line xxxx: Expected text after =item, not a number

This patch fixes this issue, allowing compilation with Perl 5.18.

Signed-off-by: Jonathan McCrohan <jmccrohan@gmail.com>