Correct some nesting of GCPRO and UNGCPRO, thank you Mats' buildbot!
2011-04-04 Aidan Kehoe <kehoea@parhasard.net>
* fns.c (FremoveX):
* fns.c (sublis):
Correct some nesting of GCPRO and UNGCPRO here, revealed by the
the C++ build compiling core Lisp. Thank you Mats' buildbot!