style: unify indentation in RuboCop configuration

Some elements already used two-space indentation and we also prefer two
spaces in our Ruby code.

Closes #306.

Signed-off-by: Martin Afanasjew <martin@afanasjew.de>
This commit is contained in:
Martin Afanasjew 2016-05-31 22:10:59 +02:00
parent 8b97a00036
commit 8e728d6604