Only add path from commandline if no .php_cs file present

Currently when specifing a .php_cs file the finder in there is nearly useless, because i have to supply . on the command line as path, but this path is added to the finder, so my complete repo is searched, although i had a complete config on which folders to scan in .php_cs.
I could of course mark all folders as ignored, but i think it's better to have a whitelist instead of blacklist sometimes.

The change is to only add the path from the commandline if there was no .php_cs file found.