[fortran, patch] Fix handling of printf-style position specifiers of the form "%3$d" in error.c (PR29711)

[FX Coudert]

:REVIEWMAIL:

> 2006-12-07  Tobias Burnus  <burnus@net-b.de
>
> 	PR fortran/29711 <http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29711>
>         * error.c (error_print): Fix handling of printf-style  
> position specifiers
>         of the form "%3$d".

OK, but without the URL in the final ChangeLog :)

Sorry for messing this up in the first place,
FX