Code refactoring

[tosemml]

These slight code adjustments aim to enhance Pythonic quality by incorporating python str.join

[githubharald]

Hi, thanks for your contribution. The original code also puts a ";" at the end of the line, while the new code does not. Could you please also add this additional ";" so that the output file does not change. csv += ';'.join([str(rnn_output[t, b, c]) for c in range(max_c)]) + ';\n'

[tosemml]

Fixed it, thanks a lot.

[githubharald]

looks good, thanks!