message: Pointing to alainmarcel/antlr4
diff: url = https://github.com/google/googletest.git
  [submodule "third_party/antlr4"]
  path = third_party/antlr4
  - url = https://github.com/hs-apotell/antlr4.git
  + url = https://github.com/alainmarcel/antlr4.git
  branch = Surelog
  