--apply should function anywhere in the command

[RyanMilligan]

If I put --apply before the file glob, I get the following output:

> can-migrate --apply **/*.js

  Codemods to simplify upgrading CanJS.

  Usage
  $ can-migrate [<file|glob> ...]

  Updates files according to the CanJS 3.0 or CanJS 4.0 migration paths (minimal, modern, future)
  More info for v3.0: http://canjs.github.io/canjs/doc/migrate-3.html#Modernizedmigrationpath
  More info for v4.0: http://canjs.github.io/canjs/doc/migrate-4.html

  Options
  --apply     -a    Apply transforms (instead of a dry run)
  --force           Apply transforms regardless of git status
  --silent    -s    Silence output
  --config    -c    Path to custom config file
  --transform -t    specify a transform
  --can-version     specify CanJS version to upgrade to

  Examples
  can-migrate **/*.js
  can-migrate --apply **/*.js
  can-migrate -iad **/*.js
  can-migrate **/*.* --transform can-route/register.js
  can-migrate **/*.* --can-version 4

Putting --apply at the end of the command works around this issue. Either --apply should work in the way the help output describes, or the output should be updated to correctly reflect the requirements.