sort auto-generated en.yml locale file
sort auto-generated en.yml locale file

fixes FOO-1569
flag  = none

The tree of phrases coming out of the i18n:generate rake task is now in
alphabetical order. This should have absolutely no effect on the
structure of the tree, only on the order in which the keys appear in
each branch.

:: test plan ::

There are no surprises related to text in the UI; any page should do,
things should look the same, you don't see "bar" in place of "foo"

Change-Id: I683c5ee352149128a05e36bcb07646aca15ad3a3
Reviewed-on: https://gerrit.instructure.com/c/canvas-lms/+/258170
Tested-by: Service Cloud Jenkins <9144042a601061f88f1e1d7a1753ea3e2972119d@instructure.com>
Reviewed-by: Simon Williams <088e16a1019277b15d58faf0541e11910eb756f6@instructure.com>
QA-Review: Simon Williams <088e16a1019277b15d58faf0541e11910eb756f6@instructure.com>
Product-Review: Simon Williams <088e16a1019277b15d58faf0541e11910eb756f6@instructure.com>

instructure/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,instructure/canvas-lms,instructure/canvas-lms,instructure/canvas-lms,instructure/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,instructure/canvas-lms,sfu/canvas-lms,instructure/canvas-lms,sfu/canvas-lms,sfu/canvas-lms