Log Message:
p5-libwww: update to 6.29.

6.29      2017-11-06
    - Fix some version numbers

6.28      2017-11-06
    - Remove last use of Geopt::Std (Sergey Remanov) (GH #267)
    - Include unmatched connect error in status string (Patrik Lundin) (GH #269)
    - Fix insecure open FILEHANDLE,EXPR (Takumi Akiyama) (GH #270)