erreur suppression

# sup portage-utils
 * This action can remove important packages! In order to be safer, use
 * `emerge -pv --depclean <atom>` to check for reverse dependencies before
 * removing packages.

 app-portage/portage-utils
    selected: 0.6
   protected: none
     omitted: none

All selected packages: app-portage/portage-utils-0.6

>>> 'Selected' packages are slated for removal.
>>> 'Protected' and 'omitted' packages will not be removed.

>>> Waiting 3 seconds before starting...
>>> (Control-C to abort)...
>>> Unmerging in:  3 2 1
>>> Unmerging app-portage/portage-utils-0.6...
Traceback (most recent call last):
  File "/usr/bin/emerge", line 43, in <module>
    retval = emerge_main()
  File "/usr/lib/portage/pym/_emerge/main.py", line 1903, in emerge_main
    myopts, myaction, myfiles, spinner)
  File "/usr/lib/portage/pym/_emerge/actions.py", line 2683, in action_uninstall
    scheduler=sched._sched_iface)
  File "/usr/lib/portage/pym/_emerge/unmerge.py", line 552, in unmerge
    scheduler=scheduler)
  File "/usr/lib/portage/pym/portage/dbapi/vartree.py", line 4428, in unmerge
    retval = mylink.unmerge(ldpath_mtimes=ldpath_mtimes)
  File "/usr/lib/portage/pym/portage/dbapi/vartree.py", line 1738, in unmerge
    self._unmerge_pkgfiles(pkgfiles, others_in_slot)
  File "/usr/lib/portage/pym/portage/dbapi/vartree.py", line 1915, in _unmerge_pkgfiles
    self.updateprotect()
  File "/usr/lib/portage/pym/portage/dbapi/vartree.py", line 1363, in updateprotect
    self._get_protect_obj().updateprotect()
  File "/usr/lib/portage/pym/portage/dbapi/vartree.py", line 1353, in _get_protect_obj
    self.settings.get("CONFIG_PROTECT", "")),
  File "/usr/lib/portage/pym/portage/util/__init__.py", line 512, in shlex_split
    rval = shlex.split(s)
  File "/usr/lib/python2.7/shlex.py", line 279, in split
    return list(lex)
  File "/usr/lib/python2.7/shlex.py", line 269, in next
    token = self.get_token()
  File "/usr/lib/python2.7/shlex.py", line 96, in get_token
    raw = self.read_token()
  File "/usr/lib/python2.7/shlex.py", line 191, in read_token
    raise ValueError, "No escaped character"
ValueError: No escaped character