Update Gemfile.lock
Update Gemfile.lock

Executing `bundle install` makes git-diff in the file on my VM.
It reverts changes that were made in bbbc861f717689a0a28f031fe2176d0f8a6b07c7
to the file.

Sorry for this noise. I just want to figure out whether it is something unique
with my VM's environment or those changes were made accidentally?
/cc @kamipo

Edouard-chin/rails,MSP-Greg/rails,kmcphillips/rails,joonyou/rails,yahonda/rails,Envek/rails,yawboakye/rails,kddeisz/rails,bogdanvlviv/rails,joonyou/rails,yawboakye/rails,Vasfed/rails,Erol/rails,lcreid/rails,EmmaB/rails-1,esparta/rails,bogdanvlviv/rails,EmmaB/rails-1,MSP-Greg/rails,BlakeWilliams/rails,BlakeWilliams/rails,joonyou/rails,Vasfed/rails,Erol/rails,georgeclaghorn/rails,rails/rails,Stellenticket/rails,rails/rails,kddeisz/rails,yahonda/rails,rails/rails,yawboakye/rails,kddeisz/rails,Envek/rails,kmcphillips/rails,Stellenticket/rails,Erol/rails,esparta/rails,bogdanvlviv/rails,esparta/rails,esparta/rails,yawboakye/rails,georgeclaghorn/rails,joonyou/rails,kmcphillips/rails,Erol/rails,Stellenticket/rails,bogdanvlviv/rails,kddeisz/rails,Edouard-chin/rails,Vasfed/rails,Envek/rails,yahonda/rails,MSP-Greg/rails,georgeclaghorn/rails,MSP-Greg/rails,Stellenticket/rails,lcreid/rails,EmmaB/rails-1,georgeclaghorn/rails,lcreid/rails,Envek/rails,yahonda/rails,kmcphillips/rails,lcreid/rails,Edouard-chin/rails,BlakeWilliams/rails,Vasfed/rails,Edouard-chin/rails,rails/rails,BlakeWilliams/rails