Sulley fuzz the default integer value

[Olivier07]

Hello,

I'm using Sulley for a particular project, and after fuzz all my data I had some duplicates.
I discovered that Sulley fuzz even his own default value for the integers.

For exemple s_int(2); generate in his fuzzed values the number 2.
I don't know if it's wanted or if it is a "bug". I solved it by adding 3 lines of codes in primitives.py but I think the better option will be to add an option to select if the default value have to be in the fuzzed values or not.

Let me know if you want my modifications and if it's normal behavior of Sulley.
Thank you,

Olivier