wrap long stack trace lines

[stan-is-hate]

• wrap long stack trace lines:

• update vagrantfile to work with latest virtualbox:

  
  ==> ducktape1: Clearing any previously set network interfaces...
  The IP address configured for the host-only network is not within the
  allowed ranges. Please update the address used to be within the allowed
  ranges and run the command again.
  
  Address: 192.168.50.151
  Ranges: 192.168.56.0/21

Valid ranges can be modified in the /etc/vbox/networks.conf file. For more information including valid format see:

https://www.virtualbox.org/manual/ch06.html#network_hostonly

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