LP #1617246: recv_recovery_from_checkpoint_start_func -Wmaybe-uninitialized warning for group_scanned_lsn

**Reported in Launchpad by Laurynas Biveinis last update 26-08-2016 10:14:19

5.5 trunk:

/mnt/workspace/percona-server-5.5-trunk/BUILD_TYPE/release/Host/centos7-64/storage/innobase/log/log0recv.c: In function recv_recovery_from_checkpoint_start_func:
/mnt/workspace/percona-server-5.5-trunk/BUILD_TYPE/release/Host/centos7-64/storage/innobase/log/log0recv.c:3286:10: warning: group_scanned_lsn may be used uninitialized in this function [-Wmaybe-uninitialized]
fprintf(stderr,
^