fix trigger scriptlets

triggers don't like %{_kf5_datadir}, may need to be defined at srpm time,
so make safe assumption that _kf5_datadir = _datadir

breeze-icon-theme.spec

@@ -98,30 +98,30 @@ test "$(grep '^Inherits=' %{buildroot}%{_datadir}/icons/breeze-dark/index.theme)
 
 %if 0%{?fedora} > 25
 ## trigger-based scriptlets
-%filetriggerin -- %{_kf5_datadir}/icons/breeze
-touch %{_kf5_datadir}/icons/breeze &> /dev/null || :
+%filetriggerin -- %{_datadir}/icons/breeze
+touch %{_datadir}/icons/breeze &> /dev/null || :
 
-%filetriggerin -- %{_kf5_datadir}/icons/breeze-dark
-touch %{_kf5_datadir}/icons/breeze-dark &> /dev/null || :
+%filetriggerin -- %{_datadir}/icons/breeze-dark
+touch %{_datadir}/icons/breeze-dark &> /dev/null || :
 
-%transfiletriggerin -- %{_kf5_datadir}/icons/breeze
-gtk-update-icon-cache %{_kf5_datadir}/icons/breeze &>/dev/null || :
+%transfiletriggerin -- %{_datadir}/icons/breeze
+gtk-update-icon-cache %{_datadir}/icons/breeze &>/dev/null || :
 
-%transfiletriggerin -- %{_kf5_datadir}/icons/breeze-dark
-gtk-update-icon-cache %{_kf5_datadir}/icons/breeze-dark &>/dev/null || :
+%transfiletriggerin -- %{_datadir}/icons/breeze-dark
+gtk-update-icon-cache %{_datadir}/icons/breeze-dark &>/dev/null || :
 
 # arg, looks like this case cannot be handled by triggers? -- rex
 %postun
 if [ $1 -eq 0 ] ; then
-touch --no-create %{_kf5_datadir}/icons/breeze &> /dev/null || :
-touch --no-create %{_kf5_datadir}/icons/breeze-dark &> /dev/null || :
+touch --no-create %{_datadir}/icons/breeze &> /dev/null || :
+touch --no-create %{_datadir}/icons/breeze-dark &> /dev/null || :
 fi
 
-%transfiletriggerpostun -- %{_kf5_datadir}/icons/breeze
-gtk-update-icon-cache %{_kf5_datadir}/icons/breeze &>/dev/null || :
+%transfiletriggerpostun -- %{_datadir}/icons/breeze
+gtk-update-icon-cache %{_datadir}/icons/breeze &>/dev/null || :
 
-%transfiletriggerpostun -- %{_kf5_datadir}/icons/breeze-dark
-gtk-update-icon-cache %{_kf5_datadir}/icons/breeze-dark &>/dev/null || :
+%transfiletriggerpostun -- %{_datadir}/icons/breeze-dark
+gtk-update-icon-cache %{_datadir}/icons/breeze-dark &>/dev/null || :
 
 %else
 ## classic scriptlets