See if --dev flag speeds up jruby syntax checks

7 jobs for master in 11 minutes and 25 seconds
Status Job ID Name Coverage
  Syntax
passed #511
ruby
jruby_1.7

00:07:41

passed #512
ruby
jruby_9.1

00:09:40

passed #507
ruby
ruby_2.1

00:01:02

passed #508
ruby
ruby_2.2

00:00:50

passed #509
ruby
ruby_2.3

00:00:45

passed #510
ruby
ruby_2.4

00:00:42

 
  Linting
passed #513
ruby
rubocop

00:01:26