Doors: Avoid white particles when digging wooden trapdoor

Alter the wooden trapdoor side texture, replacing the white area with a
repetition of the wood pixels.
It is now consistent with the steel trapdoor side texture.
This commit is contained in:
DS-Minetest 2017-06-06 19:14:52 +02:00 committed by paramat
parent c714d43319
commit 7e9c5a3576

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