edit broken command for docker setup
edit broken command for docker setup

The old command used to print `version: 2` instead of `version: '2'`,
which made docker-compose angry:

  ERROR: Version in "./docker-compose.local.ahuff.yml" is invalid - it should be a string.

Change-Id: Ie4d34db6f99fe3c6efc3dd439003a7a6f1a315bb
Reviewed-on: https://gerrit.instructure.com/101079
Tested-by: Jenkins
Reviewed-by: Eric Coan <e4674042a0b1aef8cb92a5ded6745c5cf4620423@instructure.com>
Product-Review: Andrew Huff <b334cc62d1472ff334a155064665c29200a80f59@instructure.com>
QA-Review: Andrew Huff <b334cc62d1472ff334a155064665c29200a80f59@instructure.com>

instructure/canvas-lms,instructure/canvas-lms,djbender/canvas-lms,djbender/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,SwinburneOnline/canvas-lms,instructure/canvas-lms,sfu/canvas-lms,venturehive/canvas-lms,SwinburneOnline/canvas-lms,SwinburneOnline/canvas-lms,instructure/canvas-lms,sfu/canvas-lms,djbender/canvas-lms,venturehive/canvas-lms,sfu/canvas-lms,instructure/canvas-lms,sfu/canvas-lms,SwinburneOnline/canvas-lms,venturehive/canvas-lms,venturehive/canvas-lms,sfu/canvas-lms,djbender/canvas-lms,instructure/canvas-lms,instructure/canvas-lms