Leading whitespaces in data[cookies]

[mintos5]

Data sent from snare to tanner have small issue. In short this data can be represented as dictionary of keys: method, path, headers, uuid, peer, status, cookies, etc...
Value of data[cookies] is another dictionary containing cookies names and values: This dictionary is not created properly and some keys (cookies names) are generated with leading whitespace.

I found the issue is connected to this part of code:
https://github.com/mushorg/snare/blob/master/snare/tanner_handler.py#L45

The easiest fix is to remove whitespaces with something like strip() but I am not sure if it is the correct way to fix this problem.

Hopefully somebody will look at this problem.