Fix for recursive_rmdir

[michael . goffioul]

This patch allows correct directory deletion: under MSVC, directories
can't be removed because the dir_entry object still has a reference to
it.
 
Michael.
 
Index: file-ops.cc
===================================================================
RCS file: /cvs/octave/liboctave/file-ops.cc,v
retrieving revision 1.44
diff -c -p -r1.44 file-ops.cc
*** file-ops.cc 6 Feb 2007 18:55:23 -0000       1.44
--- file-ops.cc 27 Feb 2007 14:11:40 -0000
*************** file_ops::recursive_rmdir (const std::st
*** 377,383 ****
        }
  
        if (status >= 0)
!       status = file_ops::rmdir (name, msg);
      }
    else
      {
--- 377,386 ----
        }
  
        if (status >= 0)
!         {
!           dir.close
();
!         status = file_ops::rmdir (name, msg);
!       }
      }
    else
      {