@sueloverso 

Hi Sue,

I hope you don't mind - I used this opportunity to get a bit more familiar with Python string quoting and substitution (it's a bit of a mine field for me). Since this is your script, it's definitely worth you reviewing the changes to this file. The primary reason I needed to make changes was because I changed wtperf to always include the header line in the stats output (since the other graphing script generates graph titles from that information).