Update check_version.php

[oddrabbit]

Hi there,

Just noticed that the regular Git Clone line without the branch wasn't working for me. So I changed it back to the Git command that included the branch flag.

Thanks.

[oddrabbit]

Here are some supporting images:

When the PHP-Parser has not been downloaded we get this message.

And if I follow the instructions it will error out saying that PHP-Parser is the wrong version:

But if we download with the alternative it works:

Thanks.