rem: void print_sections(section *first)
add: print_sections(section *first)
context: void print_sections(section *first){    nvpair *p;        while(first){        printf("\n[%s]\n",first->name);        for(p = first->firstnv; p; p = p->next){            printf("%s=%s\n",p->name,p->value);        }        first = first->next;    }}