Log Message:
PkgSrc changes:
  - Updating package for p5 module MooseX::AttributeHelpers to 0.17
  - Set license to artistic-2.0

Upstream changes:
0.17 Fri April 19, 2009
    - Add defined to Hash (Evan Carroll).

0.16 Sun April 5, 2009
    - Add substr to String (Florian Ragwitz).

0.15 Thu March 26, 2009
    - The splice helper for arrays was completely broken. Reported by
      Abhijit Mahabal. RT #43343.