xtrabackup 2.1.3-618-1 (i386 binary) in ubuntu saucy

 In 2.0.0, the XtraBackup package name was rebranded to
 percona-xtrabackup. This package is an empty dummy package
 that depends on percona-xtrabackup, and replaces older versions of
 xtrabackup (2.0.0). It is not intended to be installed manually.