Factor out functions for finding absent parent directories that need to be made for the "copy --parents" code path. Factoring out these two similar functions is a preliminary step to combining them.
Factor out functions for finding absent parent directories that need to be
made for the "copy --parents" code path. Factoring out these two similar
functions is a preliminary step to combining them.

* subversion/libsvn_client/copy.c
  (find_absent_parents1, find_absent_parents2): New functions, extracted
    from repos_to_repos_copy() and wc_to_repos_copy() respectively.
  (repos_to_repos_copy): Use find_absent_parents1().
  (wc_to_repos_copy): Use find_absent_parents2() and tweak comments.


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@874948 13f79535-47bb-0310-9956-ffa450edef68

YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,wbond/subversion,YueLinHo/Subversion,wbond/subversion,wbond/subversion,YueLinHo/Subversion,wbond/subversion,wbond/subversion,wbond/subversion,wbond/subversion,YueLinHo/Subversion,YueLinHo/Subversion