Update admin/gentoo/puse

* added requirement on Tcl 8.6 (lassign, lsearch -bisect, lmap)
* made the set of regexps used to parse atoms more flexible
* add an Atom proc to parse atoms and return arbitraty parts of an atom
* modify the sorting algorithm to not take into account the constraint
  preceding each atom (when sorting inside a category block, or adding a
  new category block)
* some minor fixes
Update admin/gentoo/puse

* Don't add a new package line if there are no flags given (e.g. all
  flags prefixed by %)
* Remove one of the surrounding blank lines when removing the last
  package line of a category block
Update admin/gentoo/puse

* Add a --comment option to set the line's comment
* Renamed PadLine to PadString and modified behaviour a bit