Follow-up to r1652469: Fix the revision / revprop file name construction.
Follow-up to r1652469: Fix the revision / revprop file name construction.

* subversion/libsvn_fs_x/util.c
  (svn_fs_x__path_rev): The rev - not the shard - shall be the file name.
  (svn_fs_x__path_revprops): Same.  Also, use the correct pack check.

git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@1652477 13f79535-47bb-0310-9956-ffa450edef68

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