Modify the svn_fs_closest_copy() test a little bit to reveal a bug in the implementation (noticed while investigating issue #2600).
Modify the svn_fs_closest_copy() test a little bit to reveal a bug in
the implementation (noticed while investigating issue #2600).

* subversion/tests/libsvn_fs/fs-test.c
  (closest_copy_test): Add an extra modification to a path that was
    added to a copied directory *after* the copy occured, revealing a
    bug spotted in the implementations of svn_fs_closest_copy().


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@861325 13f79535-47bb-0310-9956-ffa450edef68

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