please remove trailing spaces from source files
In TorButton (aboutTor.js, torbutton-logger.js, and others) there are a lot trailing spaces. It's best practice to remove them.
Just open all files in an editor that removes trailing spaces upon saving. (Such as Kate when configured to do so.)
I could provide a git branch for this "fix" if you like, but I guess it's simpler for someone with commit access.