I can see you're point about the (re)formating.
My use of the `end-of-line' style developed when i started to get better with Vim and my studies of Scheme came about. I can "move around" better in most cases with the `end-of-line' style in Vim. Most if not all of scheme code is written in the `end-of-line' style.
If i take your two functions as posted; some days it can go either way but i wold say that fun_2 is easier to read more often than fun_1 because i have more experiences with the fun_2 style (posted, and learning).
When im developing apps on my own i use fun_1 style for several reasons. -e.g. i can either "fold up" regions of code quicker or i can ignore those regions like black-boxes.
So what are we getting at? Would we like to see only code posted in fun_2 type of style (It is the recommended style Autodesk recommends)?