ndb_restore invalid handling of distribution keys when restoring meta data
  (also aligned printout with that of ndb_desc)


ndb/src/ndbapi/NdbDictionaryImpl.cpp:
  Don't call it a distribution key if all keys are set as distribution key
ndb/tools/Makefile.am:
  Use same format as desc when printing meta in ndb_restore
ndb/tools/restore/Restore.cpp:
  Use same format as desc when printing meta in ndb_restore