[parrot/parrot] 10dd30: [t] Fix path_to_parrot: realpath "" does not work ...

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/parrot/parrot
  Commit: 10dd309169562f03fefca4d2c2ce86767cf37cb0
      https://github.com/parrot/parrot/commit/10dd309169562f03fefca4d2c2ce86767cf37cb0
  Author: Reini Urban <rurban at cpanel.net>
  Date:   2012-12-17 (Mon, 17 Dec 2012)

  Changed paths:
    M lib/Parrot/Test.pm

  Log Message:
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  [t] Fix path_to_parrot: realpath "" does not work on cygwin

Use realpath "." if empty