Fixed runtime error in Unicorn config when falling back to default number of workers.

“Benjamin · “Benjamin · commit a95529ba6d1a · 2017-07-17T15:22:38.000-04:00
diff --git a/config/unicorn.rb b/config/unicorn.rb
@@ -1,4 +1,4 @@
 # set path to app that will be used to configure unicorn,
 # note the trailing slash in this example
-worker_processes ENV['WEB_CONCURRENCY'].to_i || 1
+worker_processes (ENV['WEB_CONCURRENCY'] || 1).to_i
 timeout 30
