libgfortran warning fixes due to missing <string.h>

[Steven Bosscher]

On Sunday 15 May 2005 00:32, Andreas Jaeger wrote:
> Similar warnings appers in intrinsics/link.c, etc.
>
> Ok to commit to both 4.0 and mainline after full testing passed on
> Linux/x86-64?

Sure.
Good catch btw, this -Wall thing.

Gr.
Steven