Log Message:
Update to 1.30

Upstream changes:
Version 1.30

  * New options 'command','exe' dis-ambiguate the problems around
    determining how to parse the command line and determine the
    executable name.  It also allows faking argv[0].  They can be
    inspected after program launch via same-named attributes.
  * New options 'stdin','stdout','stderr' allow initializing handles
    of the child process.
  * New option 'cwd' sets initial current directory of the child
  * Renamed '->die' to '->terminate' and options 'die_upon_destroy'
    to 'autoterminate' (but preserved back-compat)
  * Option 'autoterminate' now has an attribute accessor and can be
    toggled on the fly.
  * New option 'autodie' throws exceptions from constructor instead
    of returning undef.
  * On Unix, use a pipe to capture error messages all the way through
    to the exec() call.  Reap exec() failures without exposing the
    forked process to the user.
  * Add methods ->suspend and ->resume
  * Mitigate bug in timeout_system where a system clock change could
    increase the wait-time indefinitely.