Add tilde (~) to chars allowed in URI

ffoo/saturnin_www.sh

     #
     tr ' ' '\n' \
       | perl -ne '
-            next unless m|(\bhttps?://[[:alnum:]_:/.?&+%@=;-]+)\b|;
+            next unless m|(\bhttps?://[[:alnum:]_:/.?&+%@=;~-]+)\b|;
             print "$1\n";
         ' \
       | debug_pipe uri_lookalikes