message: File check for preventing spurious errors.
diff: @@ -1880,12 +1880,17 @@ class Cluster(object):
  def dumpErrorDetailImpl(self,fileName):
  Utils.Print("=================================================================")
  Utils.Print("Contents of %s:" % (fileName))
  + if os.path.exists(fileName):
  with open(fileName, "r") as f:
  shutil.copyfileobj(f, sys.stdout)
  + else:
  + Utils.Print("File %s not found." % (fileName))
  def dumpErrorDetails(self):
  - self.dumpErrorDetailImpl("etc/eosio/node_bios/config.ini")
  - self.dumpErrorDetailImpl("var/lib/node_bios/stderr.txt")
  + fileName="etc/eosio/node_bios/config.ini"
  + self.dumpErrorDetailImpl(fileName)
  + fileName="var/lib/node_bios/stderr.txt"
  + self.dumpErrorDetailImpl(fileName)
  for i in range(0, len(self.nodes)):
  fileName="etc/eosio/node_%02d/config.ini" % (i)
  