Whitespace is your friend:
That helps some, but to me it still looks like a cut/paste error without a comment. If you have to comment, I'm not sure what the point is (i.e. use something like one of the other solutions which is more self-describing), but of course YMMV. Now if you use this all of the time in the code you maintain then that's probably fine since it becomes an idiom (i.e. a programmer will see this code multiple times and realize it isn't a typo). I find that I rarely if ever do this so it would become more of a hazard than anything else to me...
