bash_completion: Fix all packages list

For some reason, cros_workon requires the --all argument to
be before the "list" token.
This fixes cros_workon start <tab><tab>

BUG=none
TEST=cros_workon start <tab><tab>

Change-Id: I528aa688f3a441d3069c9df952ae12ff6a0fb58b
Reviewed-on: https://chromium-review.googlesource.com/1895505
Tested-by: Craig Hesling <hesling@chromium.org>
Commit-Ready: ChromeOS CL Exonerator Bot <chromiumos-cl-exonerator@appspot.gserviceaccount.com>
Legacy-Commit-Queue: Commit Bot <commit-bot@chromium.org>
Reviewed-by: Mike Frysinger <vapier@chromium.org>
1 file changed