Try to use sudo for losetup, seems to be not allowed on Travis
Try to use sudo for losetup, seems to be not allowed on Travis

https://github.com/travis-ci/travis-ci/issues/1119

ganto/debops-test-suite,ganto/debops-test-suite,debops/test-suite,ganto/debops-test-suite,ganto/test-suite,debops/test-suite,ganto/debops-test-suite,ganto/test-suite,ganto/test-suite,ganto/test-suite,debops/test-suite,ganto/debops-test-suite,debops/test-suite,ganto/test-suite,debops/test-suite