DERBY-6157; text for message XSLA4 might encouraging people to delete part of the transaction log.
  replacing the message in English with a more elaborate one.
  adding translations to de_DE, fr, es and it, removing from all other translated files so
  the English message will pop up.


git-svn-id: https://svn.apache.org/repos/asf/db/derby/code/trunk@1468647 13f79535-47bb-0310-9956-ffa450edef68