display-accts: add an account name checker

Make sure people don't use uppercase or weird characters.

BUG=None
TEST=`./display-accts.py --lint` passes

Change-Id: Ibc47e3452afe9f6c8fcbc2a02e5585a9d4a40486
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/overlays/eclass-overlay/+/3779419
Auto-Submit: Mike Frysinger <vapier@chromium.org>
Commit-Queue: Jorge Lucangeli Obes <jorgelo@chromium.org>
Tested-by: Mike Frysinger <vapier@chromium.org>
Reviewed-by: Jorge Lucangeli Obes <jorgelo@chromium.org>
1 file changed
tree: 2070b3f6b44e0eb1a2567c9756e8871784335346
  1. acct-group/
  2. acct-user/
  3. eclass/
  4. metadata/
  5. profiles/
  6. OWNERS
  7. PRESUBMIT.cfg