Fixed typos in comments.
diff --git a/Objects/stringlib/codecs.h b/Objects/stringlib/codecs.h
index 2eb2d14..ee1bf2b 100644
--- a/Objects/stringlib/codecs.h
+++ b/Objects/stringlib/codecs.h
@@ -660,7 +660,7 @@
if (ch < 0xd800)
*out++ = ch;
else if (ch < 0xe000)
- /* reject surrogate characters (U+DC800-U+DFFF) */
+ /* reject surrogate characters (U+D800-U+DFFF) */
goto fail;
#if STRINGLIB_MAX_CHAR >= 0x10000
else if (ch >= 0x10000) {
@@ -695,7 +695,7 @@
if (ch < 0xd800)
*out++ = SWAB2((Py_UCS2)ch);
else if (ch < 0xe000)
- /* reject surrogate characters (U+DC800-U+DFFF) */
+ /* reject surrogate characters (U+D800-U+DFFF) */
goto fail;
#if STRINGLIB_MAX_CHAR >= 0x10000
else if (ch >= 0x10000) {