Yasuo tooltip bug

Hi, I just saw Yasuo in the rotation and decided to give him a try before buying it, I noticed the description in his ulti and I'm not sure if it's mistaken where it says "-this effects armor from items" rather than this affects, either way it's just a minor bug and I wanted it to let you guys know, not sure if this is the right sub-forum to post it thought. Here's a screenshot of said description