Fixed typos in comments.

diff --cc Objects/stringlib/codecs.h
index cd5d944d31697c09444d75c1e6edc62455130a60,ee1bf2b428ad67f16f28e93eb9b6033571dea004..0fc6b582d281ce3cd43a85a8c79aa0d1fdde0011
--- 1/Objects/stringlib/codecs.h
--- 2/Objects/stringlib/codecs.h
+++ b/Objects/stringlib/codecs.h
@@@ -718,93 -718,6 +718,93 @@@ STRINGLIB(utf16_encode)(const STRINGLIB
      return len - (end - in + 1);
  #endif
  }
-                 /* reject surrogate characters (U+DC800-U+DFFF) */
 +
 +#if STRINGLIB_SIZEOF_CHAR == 1
 +# define SWAB4(CH, tmp)  ((CH) << 24) /* high bytes are zero */
 +#elif STRINGLIB_SIZEOF_CHAR == 2
 +# define SWAB4(CH, tmp)  (tmp = (CH), \
 +            ((tmp & 0x00FFu) << 24) + ((tmp & 0xFF00u) << 8))
 +            /* high bytes are zero */
 +#else
 +# define SWAB4(CH, tmp)  (tmp = (CH), \
 +            tmp = ((tmp & 0x00FF00FFu) << 8) + ((tmp >> 8) & 0x00FF00FFu), \
 +            ((tmp & 0x0000FFFFu) << 16) + ((tmp >> 16) & 0x0000FFFFu))
 +#endif
 +Py_LOCAL_INLINE(Py_ssize_t)
 +STRINGLIB(utf32_encode)(const STRINGLIB_CHAR *in,
 +                        Py_ssize_t len,
 +                        PY_UINT32_T **outptr,
 +                        int native_ordering)
 +{
 +    PY_UINT32_T *out = *outptr;
 +    const STRINGLIB_CHAR *end = in + len;
 +    if (native_ordering) {
 +        const STRINGLIB_CHAR *unrolled_end = in + _Py_SIZE_ROUND_DOWN(len, 4);
 +        while (in < unrolled_end) {
 +#if STRINGLIB_SIZEOF_CHAR > 1
 +            /* check if any character is a surrogate character */
 +            if (((in[0] ^ 0xd800) &
 +                 (in[1] ^ 0xd800) &
 +                 (in[2] ^ 0xd800) &
 +                 (in[3] ^ 0xd800) & 0xf800) == 0)
 +                break;
 +#endif
 +            out[0] = in[0];
 +            out[1] = in[1];
 +            out[2] = in[2];
 +            out[3] = in[3];
 +            in += 4; out += 4;
 +        }
 +        while (in < end) {
 +            Py_UCS4 ch;
 +            ch = *in++;
 +#if STRINGLIB_SIZEOF_CHAR > 1
 +            if (Py_UNICODE_IS_SURROGATE(ch)) {
-                 /* reject surrogate characters (U+DC800-U+DFFF) */
++                /* reject surrogate characters (U+D800-U+DFFF) */
 +                goto fail;
 +            }
 +#endif
 +            *out++ = ch;
 +        }
 +    } else {
 +        const STRINGLIB_CHAR *unrolled_end = in + _Py_SIZE_ROUND_DOWN(len, 4);
 +        while (in < unrolled_end) {
 +#if STRINGLIB_SIZEOF_CHAR > 1
 +            Py_UCS4 ch1, ch2, ch3, ch4;
 +            /* check if any character is a surrogate character */
 +            if (((in[0] ^ 0xd800) &
 +                 (in[1] ^ 0xd800) &
 +                 (in[2] ^ 0xd800) &
 +                 (in[3] ^ 0xd800) & 0xf800) == 0)
 +                break;
 +#endif
 +            out[0] = SWAB4(in[0], ch1);
 +            out[1] = SWAB4(in[1], ch2);
 +            out[2] = SWAB4(in[2], ch3);
 +            out[3] = SWAB4(in[3], ch4);
 +            in += 4; out += 4;
 +        }
 +        while (in < end) {
 +            Py_UCS4 ch = *in++;
 +#if STRINGLIB_SIZEOF_CHAR > 1
 +            if (Py_UNICODE_IS_SURROGATE(ch)) {
++                /* reject surrogate characters (U+D800-U+DFFF) */
 +                goto fail;
 +            }
 +#endif
 +            *out++ = SWAB4(ch, ch);
 +        }
 +    }
 +    *outptr = out;
 +    return len;
 +#if STRINGLIB_SIZEOF_CHAR > 1
 +  fail:
 +    *outptr = out;
 +    return len - (end - in + 1);
 +#endif
 +}
 +#undef SWAB4
 +
  #endif
  
  #endif /* STRINGLIB_IS_UNICODE */