part of the MRO of a class, even though all classes implicitly inherit
methods from C<UNIVERSAL> and its parents.
-=head2 mro::set_mro($classname, $type)
+=head2 mro::set_mro ($classname, $type)
Sets the MRO of the given class to the C<$type> argument (either
C<c3> or C<dfs>).
=back
-=head2 The Pugs prototype Perl 6 Object Model uses C3
+=head2 Pugs
-=head2 Parrot now uses C3
+The Pugs prototype Perl 6 Object Model uses C3
+
+=head2 Parrot
+
+Parrot now uses C3
=over 4