create fixtures with indent

...17-07-15/region/image-region/nested-image-region.xml.json

...17-07-15/region/image-region/simple-image-region.xml.json

...n/line-drawing-region/simple-line-drawing-region.xml.json

...5/region/text-region/text-region-with-text-equiv.xml.json

...15/region/text-region/text-region-with-text-line.xml.json

...5/region/text-region/text-region-with-text-style.xml.json

.../page-xml/2017-07-15/type/alternative-image-type.xml.json

tests/fixtures/page-xml/2017-07-15/type/border-type.xml.json

...xtures/page-xml/2017-07-15/type/print-space-type.xml.json

...l/2017-07-15/type/user-defined-type-on-page-root.xml.json