ndb/src/kernel/blocks/dbdih/Dbdih.hpp:
  remove unused variable
ndb/src/kernel/blocks/dbdih/DbdihMain.cpp:
  Always supply all nodes
ndb/src/kernel/blocks/dbtc/DbtcMain.cpp:
  Enable scanning of backup fragments when read committed
ndb/test/ndbapi/testReadPerf.cpp:
  Better printout