Fix clang-format script (#53)
Fixes clang-format issues described in #53 (closed). Plus, adds a test to the script which checks if clang-format-8 is available at all. If not returns 1 which leads CI to fail.
Fixes clang-format issues described in #53 (closed). Plus, adds a test to the script which checks if clang-format-8 is available at all. If not returns 1 which leads CI to fail.