kwalitee: use `--check-some` as default CLI option
kwalitee: use `--check-some` as default CLI option

* Changes kwalitee checker to use `--check-some` as the default
  behaviour when no CLI option was specified.

* Cherry-picked from f9675f81ac549e4c3aa8ae831d4fa93413fb59b4.

tiborsimko/invenio,inveniosoftware/invenio,tiborsimko/invenio,inveniosoftware/invenio