docs($injector): use correct spacing convention for CoffeeScript functions
docs($injector): use correct spacing convention for CoffeeScript functions

This convention is exhibited by http://coffeescript.org/ and https://github.com/polarmobile/coffeescript-style-guide#functions.

Closes #5354

ammula88/angular.js,ammula88/angular.js,ammula88/angular.js,ammula88/angular.js,ammula88/angular.js