space after youtube link

Hi,

I've found a bug!

One of my users submited a video from youtube.com, and accidentaly he placed a "space" after the link like this: "www.youtube.com/watch?v=28bWToCpH5c "

This made 2 problems!
1. the video was not shoing up on the full node view!
2. The preview picture was not accessible, because the link was translated like this: http://img.youtube.com/vi/28bWToCpH5c%20/2.jpg

I think a trim command would solve the problem!

I don't know if this problem exist with other providers!

Lupus