MDEV-7977 MYSQL_BIN_LOG::write_incident failing to release LOCK_log#39

knielsen merged 1 commit intoMariaDB:5.5MariaDB/server:5.5from

openquery:MDEV-7977-mutex-unlock_LOCK_log-in-MYSQL_BIN_LOG_write_incidentopenquery/mariadb-server:MDEV-7977-mutex-unlock_LOCK_log-in-MYSQL_BIN_LOG_write_incidentCopy head branch name to clipboard