LP #1573371: xtrabackup 2.4.2 --slave-info miss apostrophe

**Reported in Launchpad by lalor last update 28-06-2016 10:32:01

I using xtrabackup 2.4.2 to backup my mysql which is mysqld Ver 5.5.30.

This is my backup log:

MySQL binlog position: filename 'mysql-bin.000002', position '228'
MySQL slave binlog position: master host '10.180.194.112', filename 'mysql-bin.000001', position '85359
160422 11:05:47 [00] Writing backup-my.cnf
160422 11:05:47 [00] ...done
160422 11:05:47 [00] Writing xtrabackup_info
160422 11:05:47 [00] ...done
xtrabackup: Transaction log of lsn (1824427) to (1833845) was copied.
160422 11:05:47 completed OK!

please Watch carefully the end of second line, miss a "'", which will make trouble when I parse backup log with regular expressions