fix centos tests

Gabriele Contini

2019-11-30 b7f07b2f55c05fc3603feb1cd7c4814d648f11d4

1
2
3
4
[submodule "license-generator"]
    path = extern/license-generator
    url = https://github.com/open-license-manager/lcc-license-generator.git
    branch = develop