See if --dev flag speeds up jruby syntax checks

7 jobs for master in 2 minutes and 50 seconds (queued for 1 second)
Status Job ID Name Coverage
  Syntax
canceled #504
ruby
jruby_1.7

00:02:47

canceled #505
ruby
jruby_9.1

00:02:47

passed #500
ruby
ruby_2.1

00:00:59

passed #501
ruby
ruby_2.2

00:01:24

passed #502
ruby
ruby_2.3

00:01:29

failed #503
ruby
ruby_2.4

00:00:35

 
  Linting
skipped #506
ruby
rubocop
 
Name Stage Failure
failed
ruby_2.4 Syntax There is an unknown failure, please try again
./plugins/seen.rb
ruby: invalid option --dev (-h will show valid options) (RuntimeError)
./plugins/help.rb
ruby: invalid option --dev (-h will show valid options) (RuntimeError)
./plugins/btc.rb
ruby: invalid option --dev (-h will show valid options) (RuntimeError)
./plugins/ltc.rb
ruby: invalid option --dev (-h will show valid options) (RuntimeError)
ERROR: Build failed: exit code 1