Hello Genodians

While testing the update to Genode 19.05 I recognized many "this statement may fall through" warnings.

I have created patches for the following files: base/include/util/string.h base/include/util/arg_string.h

The patches are located at: https://github.com/trimpim/genode/tree/gcc8.3_fall_through_warnings

Feel free to pick them up, if you like.

Best regards, Pirmin