Rename event variable
Rename event variable

Improve variable naming by renaming from `e` to `event`.

The arguments to rename this are:
* The naming `e` is usually a convention used for exceptions.
* No other method in this class uses the naming `e`. All other
methods are using `event`.

rails/rails,bogdanvlviv/rails,MSP-Greg/rails,utilum/rails,betesh/rails,yhirano55/rails,MSP-Greg/rails,notapatch/rails,fabianoleittes/rails,arunagw/rails,EmmaB/rails-1,Vasfed/rails,prathamesh-sonpatki/rails,kddeisz/rails,vipulnsward/rails,bogdanvlviv/rails,tgxworld/rails,Vasfed/rails,Vasfed/rails,flanger001/rails,BlakeWilliams/rails,Envek/rails,rafaelfranca/omg-rails,vipulnsward/rails,yalab/rails,Edouard-chin/rails,yahonda/rails,iainbeeston/rails,lcreid/rails,mechanicles/rails,eileencodes/rails,georgeclaghorn/rails,gauravtiwari/rails,yalab/rails,BlakeWilliams/rails,lcreid/rails,palkan/rails,notapatch/rails,Erol/rails,notapatch/rails,MSP-Greg/rails,betesh/rails,iainbeeston/rails,Envek/rails,repinel/rails,Erol/rails,kmcphillips/rails,esparta/rails,Envek/rails,Edouard-chin/rails,arunagw/rails,betesh/rails,tjschuck/rails,schuetzm/rails,shioyama/rails,fabianoleittes/rails,EmmaB/rails-1,yalab/rails,prathamesh-sonpatki/rails,vipulnsward/rails,tjschuck/rails,mechanicles/rails,eileencodes/rails,joonyou/rails,repinel/rails,esparta/rails,kddeisz/rails,joonyou/rails,palkan/rails,yhirano55/rails,tgxworld/rails,palkan/rails,eileencodes/rails,jeremy/rails,vipulnsward/rails,yahonda/rails,notapatch/rails,shioyama/rails,arunagw/rails,prathamesh-sonpatki/rails,lcreid/rails,starknx/rails,tjschuck/rails,Edouard-chin/rails,utilum/rails,yawboakye/rails,rails/rails,schuetzm/rails,yhirano55/rails,eileencodes/rails,repinel/rails,joonyou/rails,repinel/rails,mechanicles/rails,shioyama/rails,lcreid/rails,jeremy/rails,tjschuck/rails,kddeisz/rails,yahonda/rails,Stellenticket/rails,EmmaB/rails-1,esparta/rails,kmcphillips/rails,rails/rails,bogdanvlviv/rails,tgxworld/rails,schuetzm/rails,gauravtiwari/rails,jeremy/rails,kmcphillips/rails,yawboakye/rails,yalab/rails,fabianoleittes/rails,Stellenticket/rails,prathamesh-sonpatki/rails,Vasfed/rails,arunagw/rails,rails/rails,BlakeWilliams/rails,starknx/rails,iainbeeston/rails,Stellenticket/rails,shioyama/rails,flanger001/rails,Stellenticket/rails,gauravtiwari/rails,flanger001/rails,utilum/rails,rafaelfranca/omg-rails,jeremy/rails,starknx/rails,tgxworld/rails,BlakeWilliams/rails,yahonda/rails,iainbeeston/rails,georgeclaghorn/rails,yawboakye/rails,kddeisz/rails,bogdanvlviv/rails,MSP-Greg/rails,kmcphillips/rails,esparta/rails,Edouard-chin/rails,rafaelfranca/omg-rails,mechanicles/rails,georgeclaghorn/rails,georgeclaghorn/rails,flanger001/rails,palkan/rails,schuetzm/rails,utilum/rails,fabianoleittes/rails,yawboakye/rails,betesh/rails,Envek/rails,joonyou/rails,Erol/rails,Erol/rails,yhirano55/rails