That’s a side effect of your wget installation. You can set the command to not do that by, depending on your version of wget, adding a couple parameters. For example, I use the below:
wget "http://mithra62.com/?ACT=XX" -O /dev/null > /dev/null 2>&1
The above basically tells wget to take the output and throw it away.
Another option would be to change your command to use Curl instead: