Fix the documentation of `dex2oat`'s option `--watchdog-timeout`.

This option's argument is expected to be a duration expressed in
milliseconds, but the documentation says it should be a value
expressed in seconds. Adjust the latter to match the former.

Test: atest art_standalone_dex2oat_tests
Bug: 200251675
Change-Id: Ib6a9fa23d4e8241f93aa180e143090b58b3bbe5c
1 file changed