managesieve: Rename "Vacation" to "Out of Office"

plugins/managesieve/Changelog

@@ -9,6 +9,7 @@
 - Support Elastic skin
 - Fix bug where text: syntax was forced for strings longer than 1024 characters (#6143)
 - Fix missing Save button in Edit Filter Set page of Classic skin (#6154)
+- Rename "Vacation" to "Out of Office"
 
 * version 9.0 [2017-10-02]
 -----------------------------------------------------------

plugins/managesieve/localization/en_US.inc

@@ -177,20 +177,20 @@ $labels['asciicasemap'] = 'case insensitive (ascii-casemap)';
 $labels['asciinumeric'] = 'numeric (ascii-numeric)';
 $labels['index'] = 'index:';
 $labels['indexlast'] = 'backwards';
-$labels['vacation'] = 'Vacation';
+$labels['vacation'] = 'Out of Office';
 $labels['vacation.reply'] = 'Reply message';
 $labels['vacation.advanced'] = 'Advanced settings';
 $labels['vacation.from'] = 'Reply sender address';
 $labels['vacation.subject'] = 'Subject';
 $labels['vacation.body'] = 'Body';
-$labels['vacation.start'] = 'Vacation start';
-$labels['vacation.end'] = 'Vacation end';
+$labels['vacation.start'] = 'Start time';
+$labels['vacation.end'] = 'End time';
 $labels['vacation.status'] = 'Status';
 $labels['vacation.on'] = 'On';
 $labels['vacation.off'] = 'Off';
 $labels['vacation.addresses'] = 'My e-mail addresses';
 $labels['vacation.interval'] = 'Reply interval';
-$labels['vacation.after'] = 'Put vacation rule after';
+$labels['vacation.after'] = 'Put the out-of-office rule after';
 $labels['vacation.saving'] = 'Saving data...';
 $labels['vacation.action'] = 'Incoming message action';
 $labels['vacation.keep'] = 'Keep';