Wasn't an edit war. The other user was just adding some text and postedDana clicked edit before I edited, then clicked save after I pushed my first edithad. My change was lost. It happens sometimes ;)
But on topic, I think it makes most sense to have something that is copy-paste-able. When you start munging dollars and hashes onto the front of lines, you break that.
There is scope for confusion (if you have multiple commands and then an example of some text you'd like the user to add to a file) but if that's possible, you just make sure you explain what each code block is with some text between the blocks.