Docklets contextual menus are not translatable

[L'Africain]

On the trash contextual menu the text appears in English. No way to translate it on launchpad.
Plank --version 0.11.1
Ubuntu 16.04.

[Anne017 (anneonyme017)]

Bug confirmed, attached are some screenshots of the untranslated strings.

[Anne017 (anneonyme017)]

It seems the strings from the screenshots (among others) are coming from this file:
~/plank/docklets/Trash/TrashDockItem.vala
But I do not know how to modify a program in Vala to enable the internationalization.

Moreover, the issue seems to be the same for all the .vala files in the ~/plank/docklets folder.
Attached is an other screenshot for the Clock docklet for instance.
That is why I think the bug title should be:
"Docklets contextual menus are not translatable" instead of "Trash desklet contextual menu is not translated"

[Étienne Deparis (milouse)]

Hello there.

I found how to fix this problem and open an MR for that here: https://code.launchpad.net/~milouse/plank/+git/plank/+merge/413473

I hope it will help :)