update: Updated metadata missing in .pm files

* Updated a few metadata items that were missing in .pm files. These
  might be simply regarded as typos and thus, this commit is of very
  small importance.

Signed-off-by: mr.Shu <mr@shu.io>

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Just slower than @moollaza ...

to @russellholt 
@moollaza in your PR, you've just removed the `http://github.com/` from that string. I believe there need to be two values.