Not valid for 2.1
nilnandan.joshi@bm-support01:~/percona-xtrabackup-2.1.9$ grep -rn XB_VERSION_EXTRA * nilnandan.joshi@bm-support01:~/percona-xtrabackup-2.1.9$
Not valid for 2.1
nilnandan. joshi@bm- support01: ~/percona- xtrabackup- 2.1.9$ grep -rn XB_VERSION_EXTRA * joshi@bm- support01: ~/percona- xtrabackup- 2.1.9$
nilnandan.