Fixed the stage title translation in cycle analytics

app/views/projects/cycle_analytics/show.html.haml

@@ -51,7 +51,7 @@
             %ul
               %li.stage-header
                 %span.stage-name
-                  {{ __('ProjectLifecycle|Stage') }}
+                  {{ s__('ProjectLifecycle|Stage') }}
                 %i.has-tooltip.fa.fa-question-circle{ "data-placement" => "top", title: _("The phase of the development lifecycle."), "aria-hidden" => "true" }
               %li.median-header
                 %span.stage-name