Print unique names

[vindarel]

Hi,
This is already a handy tool, yet it prints several times the same project from different sources. For example:

SEARCH-RESULTS: "csv"
=====================

 Quicklisp
 ---------
  cl-csv
      /home/vince/quicklisp/dists/quicklisp/software/cl-csv-20180831-git/
      http://beta.quicklisp.org/archive/cl-csv/2018-08-31/cl-csv-20180831-git.tgz
      http://quickdocs.org/cl-csv/
  read-csv
      http://beta.quicklisp.org/archive/read-csv/2018-10-18/read-csv-20181018-git.tgz
      http://quickdocs.org/read-csv/

 GitHub
 ------
  cl-csv
      https://github.com/AccelerationNet/cl-csv
      A common lisp library providing easy csv reading and writing
  read-csv
      https://github.com/WarrenWilkinson/read-csv
      read-csv is a lisp library for reading CSV (comma-separated value) files
      like the ones exported from Excel.

I'd enjoy the presentation to be changed: a unique project and a list of where it appears.

Regards