Fix building with Sun CC breakage.

[Pedro Alves]

Pedro Alves wrote:
 > bfd/
 > 2007-10-25  Pedro Alves  <pedro_alves@portugalmail.pt>
 >
 > 	* bfd-in.h (STRING_COMMA_LEN): Don't handle NULL STR case.
 > 	* bfd-in2.h: Regenerate.
 >
 > ld/
 > 2007-10-25  Pedro Alves  <pedro_alves@portugalmail.pt>
 >
 > 	* pe-dll.c (autofilter_symbollist_generic)
 > 	(autofilter_symbollist_i386, autofilter_liblist)
 > 	(autofilter_objlist, autofilter_symbolprefixlist)
 > 	(autofilter_symbolsuffixlist): Don't use STRING_COMMA_LEN with
 > 	NULL.

I've checked these in.

Cheers,
Pedro Alves