Revisit: real/compress: hGetContents: invalid argument (invalid byte sequence)

[rolandtritsch]

real/compress likes to fail with an exception (hGetContents: invalid argument (invalid byte sequence).

To make real/compress compile and run again hSetBinaryMode stdout needs to be False (in Main.hs) and skip-check needs to be enabled (in single-bench).

Sooner or later we want to run all test without skipping the checks again. For that to work we need to make sure we write the correct binary data to stdout (otherwise the checks will fail).