Rooted Dirt called "Flith o' roots" in Pirate Speak

When the language is set to Pirate Speak, Rooted Dirt is referred to as "Flith o' roots", a misspelling of "Filth o' roots".

What I expected to happen was...:
Rooted Dirt called "Filth o' roots"

What actually happened was...:
Rooted Dirt called "Flith o' roots"

Steps to Reproduce:
1. Set language to Pirate Speak
2. Find rooted dirt in the world or creative inventory
3. Read the name of it