This member is added by an implicit conversion from RichThrowableHalt to
any2stringadd[RichThrowableHalt] performed by method any2stringadd in scala.Predef.
This member is added by an implicit conversion from RichThrowableHalt to
StringFormat[RichThrowableHalt] performed by method StringFormat in scala.Predef.
Implicit wrapper to allow any Throwable to halt