Fred drives and fixes a formatting nit.

Doc/lib/libshutil.tex

@@ -76,8 +76,8 @@ file type and creator codes will not be correct.
 \end{funcdesc}
 
 \begin{funcdesc}{rmtree}{path\optional{, ignore_errors\optional{, onerror}}}
-\index{directory!deleting}
-  Delete an entire directory tree.  If \var{ignore_errors} is true,
+  Delete an entire directory tree.\index{directory!deleting}
+  If \var{ignore_errors} is true,
   errors resulting from failed removals will be ignored; if false or
   omitted, such errors are handled by calling a handler specified by
   \var{onerror} or, if that is omitted, they raise an exception.