Fix "No files found to scan" message when quiet is false

When the --quiet flag isn't present the command:
`phpcpd --min-lines 5 --max-lines 70 --names *.php src`

Seems to get confused and finds no files, this can be fixed by adding ='s like so:
`phpcpd --min-lines=5 --max-lines=70 --names=*.php src`