code cleanup: rubocop: fix Style/WhileUntilModifier in app/models/attachment.rb

git-svn-id: http://svn.redmine.org/redmine/trunk@18783 e93f8b46-1217-0410-a6f0-8f06a7374b81

.rubocop_todo.yml

@@ -1437,11 +1437,6 @@ Style/VariableInterpolation:
   Exclude:
     - 'lib/redmine/configuration.rb'
 
-# Cop supports --auto-correct.
-Style/WhileUntilModifier:
-  Exclude:
-    - 'app/models/attachment.rb'
-
 # Cop supports --auto-correct.
 # Configuration parameters: EnforcedStyle, MinSize, WordRegex.
 # SupportedStyles: percent, brackets

app/models/attachment.rb

@@ -506,7 +506,8 @@ class Attachment < ActiveRecord::Base
         # keep the extension if any
         ascii << $1 if filename =~ %r{(\.[a-zA-Z0-9]+)$}
       end
-      while File.exist?(File.join(storage_path, directory.to_s, "#{timestamp}_#{ascii}"))
+      while File.exist?(File.join(storage_path, directory.to_s,
+                                  "#{timestamp}_#{ascii}"))
         timestamp.succ!
       end
       "#{timestamp}_#{ascii}"