Log Message:
Update devel/py-argcomplete to 1.3.0.

Version 1.3.0 (2016-06-01)
- Correctly handle suggestions with custom nargs for optionals.

Version 1.2.0 (2016-05-25)
- Fix propagation of partially parsed subparser namespace into
  parent parser namespace upon subparser failure due to partial
  args. This allows completers to access partial parse results for
  subparser optionals in parsed_args (#114).
- The default completer can now be specified when manually
  instantiating CompletionFinder. Thanks to @avylove (#130).

Version 1.1.1 (2016-03-22)
- Use FilesCompleter as default completer fallback (#120).