fix rubocop issues

Signed-off-by: Patrick Meier <patrick.meier111@googlemail.com>
fix rubocop issues

Signed-off-by: Patrick Meier <patrick.meier111@googlemail.com>
more rubocop fixes

Signed-off-by: Patrick Meier <patrick.meier111@googlemail.com>
more rubocop fixes

Signed-off-by: Patrick Meier <patrick.meier111@googlemail.com>
fix syntax error

Signed-off-by: Patrick Meier <patrick.meier111@googlemail.com>
Merge pull request #3 from atomic111/master

fix rubocop issues