Lint a random file (#3022)

* lint a random file

* don't use such a long line

---------

Co-authored-by: Jeff Ohrstrom <johrstrom@osc.edu>

apps/dashboard/app/models/usr_product.rb

@@ -1,18 +1,23 @@
+# frozen_string_literal: true
+
 # A Product class for shard (usr) apps.
 class UsrProduct < Product
   validate :assets_exist, on: :show_app, if: :passenger_rails_app?
 
   def assets_exist
-    errors.add(:base, "Build missing assets with <strong>Precompile Assets</strong>") unless router.path.join("public", "assets").directory?
+    return if router.path.join('public', 'assets').directory?
+
+    errors.add(:base, 'Build missing assets with <strong>Precompile Assets</strong>')
   end
 
   class << self
     def all
-      router.apps.map {|a| new(name: a.name, found: true)}
+      router.apps.map { |a| new(name: a.name, found: true) }
     end
 
     def find(name)
       raise Product::NotFound unless router.new(name).path.exist?
+
       new(name: name, found: true)
     end