Patch ld saved_script_handle

[Nick Clifton]

Hi Tom,

> ld does not build (at least on aix 4.3.3) 
> 
> Traced the problem to initializing the variable saved_script_handle in ldgram.y
> to false.  This patch initializes it to NULL.

Doh!  My fault.  Thanks for catching this.

I assume that you have appleid the patch, but if not please do so.

Cheers
        Nick