implement search_file for Void Linux

bin/epm-search_file

 #!/bin/sh
 #
-# Copyright (C) 2012  Etersoft
-# Copyright (C) 2012  Vitaly Lipatov <lav@etersoft.ru>
+# Copyright (C) 2012, 2016  Etersoft
+# Copyright (C) 2012, 2016  Vitaly Lipatov <lav@etersoft.ru>
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License as published by
@@ -73,6 +73,9 @@ case $PMTYPE in
 	ipkg)
 		CMD="ipkg search"
 		;;
+	xbps)
+		CMD="xbps-query -Ro"
+		;;
 	aptcyg)
 		docmd apt-cyg searchall $(echo " $pkg_filenames" | sed -e "s| /| |g")
 		return