rubocop: fix various style issues.

app/logical/user_deletion.rb

@@ -1,5 +1,5 @@
 class UserDeletion
-  class ValidationError < Exception ; end
+  class ValidationError < Exception; end
 
   attr_reader :user, :password
 
@@ -18,10 +18,10 @@ class UserDeletion
     create_mod_action
   end
 
-private
-  
+  private
+
   def create_mod_action
-    ModAction.log("user ##{user.id} deleted",:user_delete)
+    ModAction.log("user ##{user.id} deleted", :user_delete)
   end
 
   def clear_saved_searches
@@ -55,9 +55,7 @@ private
   def rename
     name = "user_#{user.id}"
     n = 0
-    while User.where(:name => name).exists? && (n < 10)
-      name += "~"
-    end
+    name += "~" while User.where(:name => name).exists? && (n < 10)
 
     if n == 10
       raise ValidationError.new("New name could not be found")