Auto merge of #1086 - toddjordan:fix-example-breakage, r=locks
Auto merge of #1086 - toddjordan:fix-example-breakage, r=locks

Fix the last change that broke example

Fix examples by updating references to new variable name.  Added comment on inject to explain where its being injected.

knownasilya/guides,jackfranklin/guides,knownasilya/guides,jackfranklin/guides,nicobot/guides,MarkMT/guides,HeroicEric/guides,greyhwndz/guides,HeroicEric/guides,bmac/guides,skaterdav85/guides,ubuntuvim/guides,bmac/guides,davidpett/guides,jkarsrud/guides,jackfranklin/guides,bmac/guides,skaterdav85/guides,tleskin/guides,boztek/guides,skaterdav85/guides,MarkMT/guides,boztek/guides,skaterdav85/guides,bmac/guides,jkarsrud/guides,tleskin/guides,MarkMT/guides,jkarsrud/guides,nicobot/guides,vikram7/guides,ubuntuvim/guides,ubuntuvim/guides,boztek/guides,davidpett/guides,knownasilya/guides,nicobot/guides,knownasilya/guides,HeroicEric/guides,greyhwndz/guides,vikram7/guides,jkarsrud/guides,MarkMT/guides,tleskin/guides,ubuntuvim/guides,davidpett/guides,davidpett/guides,greyhwndz/guides,vikram7/guides