Follow-up to r1649797:
Follow-up to r1649797:

* subversion/libsvn_fs_x/fs_x.c
  (write_revision_zero): Update comment. No functional change.

git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@1649805 13f79535-47bb-0310-9956-ffa450edef68

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