Add lint for release/2.0

* Added lint check
5 jobs for release/2.0 in 1 minute and 47 seconds (queued for 21 seconds)
latest
Status Job ID Name Coverage
  Lint
passed #22149
lint:lint-php5.4

00:01:47

passed #22150
lint:lint-php5.6

00:00:29

passed #22151
lint:lint-php7.0

00:00:27

passed #22152
lint:lint-php7.1

00:00:27

passed #22153
lint:lint-php7.2

00:00:27