fix metric documentations

core/Plugin/Report.php

@@ -139,7 +139,7 @@ class Report
         $documentation = array();
 
         foreach ($this->metrics as $metric) {
-            if (!empty( $translations[$metric])) {
+            if (!empty($translations[$metric])) {
                 $documentation[$metric] = $translations[$metric];
             }
         }

plugins/Actions/Reports/GetExitPageTitles.php

@@ -45,7 +45,7 @@ class GetExitPageTitles extends Base
 
     protected function getMetricsDocumentation()
     {
-        $metrics = parent::getMetrics();
+        $metrics = parent::getMetricsDocumentation();
         $metrics['nb_visits'] = Piwik::translate('General_ColumnUniquePageviewsDocumentation');
 
         return $metrics;

plugins/Actions/Reports/GetExitPageUrls.php

@@ -47,7 +47,7 @@ class GetExitPageUrls extends Base
 
     protected function getMetricsDocumentation()
     {
-        $metrics = parent::getMetrics();
+        $metrics = parent::getMetricsDocumentation();
         $metrics['nb_visits'] = Piwik::translate('General_ColumnUniquePageviewsDocumentation');
 
         return $metrics;

plugins/Actions/Reports/GetPageTitles.php

@@ -45,7 +45,7 @@ class GetPageTitles extends Base
 
     protected function getMetricsDocumentation()
     {
-        $metrics = parent::getMetrics();
+        $metrics = parent::getMetricsDocumentation();
         $metrics['nb_visits'] = Piwik::translate('General_ColumnUniquePageviewsDocumentation');
 
         return $metrics;

plugins/Actions/Reports/GetPageUrls.php

@@ -44,7 +44,7 @@ class GetPageUrls extends Base
 
     protected function getMetricsDocumentation()
     {
-        $metrics = parent::getMetrics();
+        $metrics = parent::getMetricsDocumentation();
         $metrics['nb_visits'] = Piwik::translate('General_ColumnUniquePageviewsDocumentation');
 
         return $metrics;