> It's not clear to me that a comma is the best character to use in this 
quoted text
> instance, because multiple events can be listed after the -e separated 
> by commas as well, for example:  -e rXXXX,cycles.
> -e rXXXX,YYYY,cycles would be confusing to read.
>
> How about -e rXXXX[+YYYY]

That's a good point. The comma seems to work in my testing though for 
some reason, but I guess
I broke the multiple events case then. I'll switch over to +

-Andi

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