Before to fix symlink(7), I'd like to propose following changes for
chown/grp/mod as follows, since our symlink now has own properties.

(1) if both -h and -R option are not given, symlinks appeared in
    command line are followed and object pointed by them are modified.
    I.e., make `chown user slink' to modify object pointed by slink.

(2) if doing phisical or half-logical traversal (i.e. -P or -H with -R
    option are given), symlinks themselves encountered during
    traversal are modified.

In both cases, currently those symlinks are not modified.

Comments?

enami.