First pass on getting the 'extra' kwarg into structlog. (#3687)
First pass on getting the 'extra' kwarg into structlog. (#3687)

* First pass on getting the 'extra' kwarg into structlog.

* Implement a few ways to make this better.

* Better dict comprehension.

gencer/sentry,alexm92/sentry,beeftornado/sentry,jean/sentry,fotinakis/sentry,ifduyue/sentry,BuildingLink/sentry,zenefits/sentry,gencer/sentry,beeftornado/sentry,ifduyue/sentry,ifduyue/sentry,looker/sentry,BuildingLink/sentry,alexm92/sentry,BuildingLink/sentry,looker/sentry,JamesMura/sentry,mitsuhiko/sentry,JackDanger/sentry,fotinakis/sentry,gencer/sentry,gencer/sentry,jean/sentry,looker/sentry,JackDanger/sentry,JackDanger/sentry,JamesMura/sentry,beeftornado/sentry,JamesMura/sentry,JamesMura/sentry,BuildingLink/sentry,zenefits/sentry,alexm92/sentry,mitsuhiko/sentry,ifduyue/sentry,mvaled/sentry,ifduyue/sentry,mvaled/sentry,fotinakis/sentry,zenefits/sentry,mvaled/sentry,gencer/sentry,looker/sentry,mvaled/sentry,jean/sentry,JamesMura/sentry,mvaled/sentry,fotinakis/sentry,zenefits/sentry,BuildingLink/sentry,jean/sentry,zenefits/sentry,mvaled/sentry,jean/sentry,looker/sentry