KDE_DOC_DIRS from old kde4*.eclass does not exist in kde5.eclass.
In modern KDE release tarballs, translated handbook files are merged
inside po/$l10n directories. Since they are separate in this case, we
can make use of a recent change in kde5.eclass to provide alternative
po dir locations and have auto LINGUAS filtering.
Package-Manager: Portage-2.3.19, Repoman-2.3.6
EAPI=6
KDE_HANDBOOK="forceoptional"
-KDE_DOC_DIRS="doc doc-translations/%lingua"
+KDE_PO_DIRS="po doc-translations"
inherit kde5
DESCRIPTION="Image viewer based on KDE Frameworks"