For documentation, source code and other information, please visit:
    http://www.aviser.asia/dovetail

This program comes with ABSOLUTELY NO WARRANTY; for details run:

    > dovetail --warranty

This is free software, and you are welcome to redistribute it under certain
conditions; for details, run:

    > dovetail --license

Dovetail: Copyright (C) 2012, Aviser LLP, Singapore

Additional materials:
    which: (C) 2008-12, Jay Loden
           http://stackoverflow.com/a/377028
    trim:  (C) 1990-2012, Python Software Foundation
           http://www.python.org/dev/peps/pep-0257/
