LP #1707918: using innobackupx with --slave-info output file xtrabackup_slave_info does not contain slave information in 2.4.8[]

**Reported in Launchpad by Rikard Eriksson last update 10-11-2017 08:10:05

updated from 2.4.5 to 2.4.8

using command:
/usr/local/percona-xtrabackup-2.4.8-Linux-x86_64/bin/innobackupex --defaults-file=/db/mysql_A/mysql_A.cnf --socket=/tmp/mysql_A.sock --user=root --password=ThePassword --slave-info --stream=tar ./ > file.tar

xtrabackup_slave_info file not complete

1. cat xtrabackup_slave_info
   CHAN

[In:/doc/percona-xtrabackup/2.4/index.html]