Various little nits while I was perusing this file.
Various little nits while I was perusing this file.

* libsvn_subr/path.c:
  - reorg headers at top of file: ANSI, then APR, then SVN
  - remove obsolete comment about different path styles

  (svn_path_canonicalize_nts): no need to use apr_pstrmemdup() for the
    SVN_EMPTY_PATH constant. also removed some 'else' lines for
    clarity (they add nothing cuz of the 'return' statments).

  (svn_path_decompose): use apr_pstrmemdup() rather than
    apr_pstrndup() since we know the length, and there won't be NUL
    characters in there. also remove a dup of SVN_EMPTY_PATH.


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@843208 13f79535-47bb-0310-9956-ffa450edef68

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