Fixes #106 undefined method zone

Author: numbata

.rubocop.yml

@@ -1,5 +1,5 @@
 Rails:
-  Enabled: true
+  Enabled: false
 
 AllCops:
   TargetRubyVersion: 2.3

lib/capistrano-db-tasks/database.rb

@@ -41,7 +41,7 @@ def database
     end
 
     def current_time
-      Time.zone.now.strftime("%Y-%m-%d-%H%M%S")
+      Time.now.strftime("%Y-%m-%d-%H%M%S")
     end
 
     def output_file