Fix new rubocop offenses

app/helpers/additionals_queries_helper.rb

@@ -83,7 +83,7 @@ module AdditionalsQueriesHelper
     scope = scope.visible unless options[:all_visible]
     scope = scope.where.not(id: exclude_id) if exclude_id.positive?
     scope = scope.where(options[:where_filter], options[:where_params]) if options[:where_filter]
-    q.split(' ').map { |search_string| scope = scope.like(search_string) } if q.present?
+    q.split.map { |search_string| scope = scope.like(search_string) } if q.present?
     scope = scope.order(last_login_on: :desc)
                  .limit(Additionals::SELECT2_INIT_ENTRIES)
     @users = scope.to_a.sort! { |x, y| x.name <=> y.name }

app/models/dashboard.rb

@@ -4,6 +4,7 @@ class Dashboard < ActiveRecord::Base
   include Additionals::EntityMethods
 
   class SystemDefaultChangeException < StandardError; end
+
   class ProjectSystemDefaultChangeException < StandardError; end
 
   belongs_to :project

lib/additionals/helpers.rb

@@ -212,12 +212,12 @@ module Additionals
 
     def project_list_css_classes(project, level)
       classes = [cycle('odd', 'even')]
-      classes += project.css_classes.split(' ')
+      classes += project.css_classes.split
       if level.positive?
         classes << 'idnt'
         classes << "idnt-#{level}"
       end
-      classes.join(' ')
+      classes.join ' '
     end
 
     def addtionals_textarea_cols(text, options = {})

lib/additionals/wiki_macros/fa_macro.rb

@@ -48,7 +48,7 @@ module Additionals
           classes << "fa-#{values[0]}"
         end
 
-        classes += options[:class].split(' ') if options[:class].present?
+        classes += options[:class].split if options[:class].present?
         classes << "fa-#{options[:size]}" if options[:size].present?
 
         content_options = { class: classes.uniq.join(' ') }