Rename method.
Rename method.

It's a description of the arity so let's call it that.

rwz/rspec-mocks,rspec/rspec-mocks,h4ck3rm1k3/rspec-mocks,rspec/rspec-mocks,zephyr-dev/rspec-mocks,zephyr-dev/rspec-mocks,h4ck3rm1k3/rspec-mocks,ducthanh/rspec-mocks,telekomatrix/rspec-mocks,AEgan/rspec-mocks,edwardpark/rspec-mocks,AEgan/rspec-mocks,rwz/rspec-mocks,maclover7/rspec-mocks,edwardpark/rspec-mocks,ducthanh/rspec-mocks,maclover7/rspec-mocks,telekomatrix/rspec-mocks