Launch documentation: fix double dashes

The documentation suggests that double dashes should be used to use
certain flags. Fix that to consistently document single dashes.

Test: tested locally
Change-Id: Ie9ce9cf6485692b76d06ca54a6402fea850d710e
Signed-off-by: Matthias Maennich <maennich@google.com>
1 file changed
tree: d4d97e79b16a0df551549546e22879ae0f00343b
  1. common/
  2. guest/
  3. host/
  4. tests/
  5. tools/
  6. Android.bp
  7. Android.mk
  8. OWNERS