Run rubocop --fix-layout and remove encoding comments

app/helpers/orders_helper.rb

@@ -1,8 +1,6 @@
-# encoding: utf-8
 module OrdersHelper
-
-  def update_articles_link(order, text, view, options={})
-    options = {remote: true, id: "view_#{view}_btn", class: ''}.merge(options)
+  def update_articles_link(order, text, view, options = {})
+    options = { remote: true, id: "view_#{view}_btn", class: '' }.merge(options)
     options[:class] += ' active' if view.to_s == @view.to_s
     link_to text, order_path(order, view: view), options
   end
@@ -13,20 +11,20 @@ module OrdersHelper
   # @param options [Hash] Options passed to +link_to+
   # @return [String] Link to order document
   # @see OrdersController#show
-  def order_pdf(order, document, text, options={})
+  def order_pdf(order, document, text, options = {})
     options = options.merge(title: I18n.t('helpers.orders.order_pdf'))
     link_to text, order_path(order, document: document, format: :pdf), options
   end
 
   def options_for_suppliers_to_select
     options = [[I18n.t('helpers.orders.option_choose')]]
-    options += Supplier.map {|s| [ s.name, url_for(action: "new", supplier_id: s.id)] }
+    options += Supplier.map { |s| [s.name, url_for(action: "new", supplier_id: s.id)] }
     options += [[I18n.t('helpers.orders.option_stock'), url_for(action: 'new', supplier_id: nil)]]
     options_for_select(options)
   end
 
   # "1×2 ordered, 2×2 billed, 2×2 received"
-  def units_history_line(order_article, options={})
+  def units_history_line(order_article, options = {})
     if order_article.order.open?
       nil
     else
@@ -49,8 +47,9 @@ module OrdersHelper
   # @option options [String] :soft_uq +true+ to hide unit quantity specifier on small screens.
   #   Sensible in tables with multiple columns.
   # @return [String] Text showing unit and unit quantity when applicable.
-  def pkg_helper(article, options={})
+  def pkg_helper(article, options = {})
     return '' if !article || article.unit_quantity == 1
+
     uq_text = "× #{article.unit_quantity}"
     uq_text = content_tag(:span, uq_text, class: 'hidden-phone') if options[:soft_uq]
     if options[:plain]
@@ -61,11 +60,12 @@ module OrdersHelper
       pkg_helper_icon(uq_text, tag: :span)
     end
   end
+
   # @param c [Symbol, String] Tag to use
   # @option options [String] :class CSS class(es) (in addition to +package+)
   # @return [String] Icon used for displaying the unit quantity
-  def pkg_helper_icon(c=nil, options={})
-    options = {tag: 'i', class: ''}.merge(options)
+  def pkg_helper_icon(c = nil, options = {})
+    options = { tag: 'i', class: '' }.merge(options)
     if c.nil?
       c = " ".html_safe
       options[:class] += " icon-only"
@@ -73,8 +73,9 @@ module OrdersHelper
     content_tag(options[:tag], c, class: "package #{options[:class]}").html_safe
   end
 
-  def article_price_change_hint(order_article, gross=false)
+  def article_price_change_hint(order_article, gross = false)
     return nil if order_article.article.price == order_article.price.price
+
     title = "#{t('helpers.orders.old_price')}: #{number_to_currency order_article.article.price}"
     title += " / #{number_to_currency order_article.article.gross_price}" if gross
     content_tag(:i, nil, class: 'icon-asterisk', title: j(title)).html_safe
@@ -83,14 +84,14 @@ module OrdersHelper
   def receive_input_field(form)
     order_article = form.object
     units_expected = (order_article.units_billed || order_article.units_to_order) *
-      1.0 * order_article.article.unit_quantity / order_article.article_price.unit_quantity
+                     1.0 * order_article.article.unit_quantity / order_article.article_price.unit_quantity
 
     input_classes = 'input input-nano units_received'
     input_classes += ' package' unless order_article.article_price.unit_quantity == 1
     input_html = form.text_field :units_received, class: input_classes,
-      data: {'units-expected' => units_expected},
-      disabled: order_article.result_manually_changed?,
-      autocomplete: 'off'
+                                                  data: { 'units-expected' => units_expected },
+                                                  disabled: order_article.result_manually_changed?,
+                                                  autocomplete: 'off'
 
     if order_article.result_manually_changed?
       input_html = content_tag(:span, class: 'input-prepend intable', title: t('orders.edit_amount.field_locked_title', default: '')) {
@@ -111,7 +112,7 @@ module OrdersHelper
     if group_orders.count == 0
       return txt
     else
-      desc = group_orders.includes(:ordergroup).map {|g| g.ordergroup_name}.join(', ')
+      desc = group_orders.includes(:ordergroup).map { |g| g.ordergroup_name }.join(', ')
       content_tag(:abbr, txt, title: desc).html_safe
     end
   end
@@ -147,7 +148,7 @@ module OrdersHelper
   # @param order [Order]
   # @option options [String] :class Classes added to the button's class attribute.
   # @return [String] Order receive button.
-  def receive_button(order, options={})
+  def receive_button(order, options = {})
     if order.stockit?
       content_tag :div, t('orders.index.action_receive'), class: "btn disabled #{options[:class]}"
     else