gogdl --version should not require --auth-config-path to be used

[Kingwad]

One should be able to check the version of the gogdl tool without needing to provide a path for authentication token storage.

-h flag does not require --auth-config-path, as expected.

Steps
./gogdl_linux_x86_64 --version

Result
./gogdl_linux_x86_64 --version

usage: gogdl_linux_x86_64 [-h] [--version] --auth-config-path AUTH_CONFIG_PATH {import,redist,dependencies,auth,download,repair,update,info,launch,save-sync,save-clear} ... gogdl_linux_x86_64: error: the following arguments are required: --auth-config-path

Expected result:
./gogdl_linux_x86_64 --version

1.1.2

Workaround:
./gogdl_linux_x86_64 --version --auth-config-path /dev/null

1.1.2