Keep the percent of total column label as it is on 6.x-dev

Author: caddoo

tests/System/expected/test_twoVisitsWithCustomVariables__subtable__API.getProcessedReport_day.xml

@@ -54,10 +54,10 @@
 	<columns>
 		<label>Custom Variable value</label>
 		<nb_visits>Visits</nb_visits>
-		<nb_visits_percent_of_total>Visits (%)</nb_visits_percent_of_total>
+		<nb_visits_percent_of_total>Visits (% of total)</nb_visits_percent_of_total>
 		<nb_uniq_visitors>Unique visitors</nb_uniq_visitors>
 		<nb_actions>Actions</nb_actions>
-		<nb_actions_percent_of_total>Actions (%)</nb_actions_percent_of_total>
+		<nb_actions_percent_of_total>Actions (% of total)</nb_actions_percent_of_total>
 		<nb_users>Users</nb_users>
 		<nb_actions_per_visit>Actions per Visit</nb_actions_per_visit>
 		<avg_time_on_site>Avg. Time on Website</avg_time_on_site>