In emodules_load(), dereference f = dll_variable() once more. We then use EXTERNAL_TO_ITEXT on it, which returns an alloca'd string, so I delete the unneeded alloca copy statements. Fixes error reported by Anders Odberg, confirmed in <rfawrpfhm3l.fsf@fangorn.uio.no>.

while (<STDIN>) {
  if (/^\$Revision:\s*([0-9\.]*)/) {
    print "char *version = \"$1\";\n";
    print "static char *id = \"\\n%%% setup-version $1\\n\";\n";
  }
}