adjust_buf
static void adjust_buf(wchar_t **, int *, wchar_t **, char *, size_t);
adjust_buf(cp, &cplen, &bptr, fmtbuf, 0);
adjust_buf(cp, &cplen, &bptr, fmtbuf,
adjust_buf(cp, &cplen, &bptr, fmtbuf, 0);
adjust_buf(cp, &cplen, &bptr, fmtbuf, 0);