SLO multipart-manifest=get returns incorrect Content-Type

Change-Id: I657c9f7a7555d90ccfa7e6ff0f5f3fcbd7eada1d
Change setup.cfg style.

Change-Id: I466470237ddd317740eb99bd55af7e7a50270ae3
Fixes: bug #1163258
Merge "Change setup.cfg style."
Merge "SLO multipart-manifest=get returns incorrect Content-Type"