remove unnecessary , in html

app/views/cost_types/_rate.html.erb

@@ -38,12 +38,12 @@ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 <%= fields_for prefix, rate do |rate_form| %>
   <tr class="<%= classes %>" id="<%= id_prefix %>">
     <td>
-      <label class="hidden-for-sighted", for="<%= "#{id_prefix}_valid_from" %>"><%= Rate.human_attribute_name(:valid_from) %></label>
+      <label class="hidden-for-sighted" for="<%= "#{id_prefix}_valid_from" %>"><%= Rate.human_attribute_name(:valid_from) %></label>
       <%= rate_form.text_field :valid_from, :size => 10, :class => 'date', :index => id_or_index %><%= calendar_for("#{id_prefix}_valid_from") %>
     </td>
     <td class="currency">
       <span class="inline-label">
-        <label class="hidden-for-sighted", for="<%= "#{id_prefix}_rate" %>"><%= Rate.model_name.human %></label>
+        <label class="hidden-for-sighted" for="<%= "#{id_prefix}_rate" %>"><%= Rate.model_name.human %></label>
         <%= rate_form.text_field :rate, :size => 7, :index => id_or_index, :value => rate.rate ? rate.rate.round(2) : "" %>
         <span class="form-label">
           <%= Setting.plugin_openproject_costs['costs_currency'] %>

app/views/hourly_rates/_rate.html.erb

@@ -31,12 +31,12 @@ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 <%= fields_for prefix, rate do |rate_form| %>
   <tr class="<%= classes %>" id="<%= id_prefix %>">
     <td>
-      <label class="hidden-for-sighted", for="<%= "#{id_prefix}_valid_from" %>"><%= Rate.human_attribute_name(:valid_from) %></label>
+      <label class="hidden-for-sighted" for="<%= "#{id_prefix}_valid_from" %>"><%= Rate.human_attribute_name(:valid_from) %></label>
       <%= rate_form.text_field :valid_from, :size => 10, :class => 'date', :index => id_or_index %><%= calendar_for("#{id_prefix}_valid_from") %>
     </td>
     <td class="currency">
       <span class="inline-label">
-        <label class="hidden-for-sighted", for="<%= "#{id_prefix}_rate" %>"><%= Rate.model_name.human %></label>
+        <label class="hidden-for-sighted" for="<%= "#{id_prefix}_rate" %>"><%= Rate.model_name.human %></label>
         <%= rate_form.text_field :rate, :size => 7, :index => id_or_index, :value => rate.rate ? rate.rate.round(2) : "" %>
         <span class="form-label">
           <%= Setting.plugin_openproject_costs['costs_currency'] %>

app/views/hourly_rates/edit.html.erb

@@ -81,7 +81,7 @@ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
     </div>
   </div>
   <div>
-    <label class="hidden-for-sighted", for="add_rate_date" %>"><%= l(:description_date_for_new_rate) %></label>
+    <label class="hidden-for-sighted" for="add_rate_date" %>"><%= l(:description_date_for_new_rate) %></label>
     <%= link_to_function l(:button_add_rate), "addRate($('add_rate_date'))", {:class => "button icon icon-add"} %>
   </div>
   <div><%= styled_button_tag l(:button_save), class: '-with-icon icon-yes' %></div>