PR 15051 Allow empty interface blocks

[Paul Brook]

> 2004-05-08  Tobias Schlüter <tobias.schlueter@physik.uni-muenchen.de>
>
> 	PR fortran/15051
> 	* parse.c (parse_interface): Allow empty INTERFACE, remove
> 	seen_body.

Ok.
Minor nit: There should be two spaces between Name and email address in the 
changelog entry.

Also, don't forget to add the testcase (with changelog entry in 
gcc/testsuite/ChangeLog. Perferred naming for testcases is
something like empty_interface_1.f90 (or empty_interface_2.f90 if that exists)

Paul