Pirate translation plugin header filenames not working

[gravityview]

Arr, this be a right tragedy! This bug should walk tha plank!

It seems our pirate-translated plugin header image isn't working 😢🏴‍☠️
​https://pirate.wordpress.org/plugins/gf-entries-in-excel/

All the others are:
​https://it.wordpress.org/plugins/gf-entries-in-excel/
​https://de.wordpress.org/plugins/gf-entries-in-excel/
​https://es.wordpress.org/plugins/gf-entries-in-excel/
​https://fr.wordpress.org/plugins/gf-entries-in-excel/

[gravityview]

Pirate-translated header

[gravityview]

Spanish-translated header

[tobifjellner]

As you can see in ​https://make.wordpress.org/polyglots/teams/ the locale should be 'art_xpirate'.

So try renaming 'banner-772x250-pirate.png' into 'banner-772x250-art_pirate.png'
(It could probably also work with banner-772x250-art.png too, but then it would also match art_xemoji, which might be, well, different. :)

[gravityview]

Ah, thank you @tobifjellner ! Sorry I didn't see that.