* libsvn_wc/entries.c
* libsvn_wc/entries.c

  (take_from_entry): No longer inherit an ancestor if the entry is
  marked for addition.

  (normalize_entry): Make "null string" and "empty string" mean the
  same thing when normalizing entries.

  (svn_wc__entries_write): If this entry's ancestor and revision are
  no different than that of the directory in which it resides, we no
  longer wish to write out the ancestor and revision XML attributes
  into the `entries' file at all.

  (svn_wc__entry_dup): Added safety check.  Duping empty strings is
  fine...duping NULL strings ain't happenin'.

jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion