In svnadmin_tests.py, use sbox.build() directly instead of through a wrapper function.
In svnadmin_tests.py, use sbox.build() directly instead of through a wrapper
function.

* subversion/tests/cmdline/svnadmin_tests.py
  (test_create): Delete.
  (set_changed_path_list,
   extra_headers,
   extra_blockcontent,
   inconsistent_headers,
   empty_date,
   load_with_parent_dir,
   reflect_dropped_renumbered_revs,
   verify_non_utf8_paths,
   load_ranges,
   load_txdelta): Use sbox.build() instead.


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@1657777 13f79535-47bb-0310-9956-ffa450edef68

YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion