instead of chars_in_text because we must ignore
enable-multibyte-characters here.
{
if (! STRING_MULTIBYTE (string))
{
- int newlen = chars_in_text (XSTRING (string)->data,
- XSTRING (string)->size_byte);
+ int newlen = multibyte_chars_in_text (XSTRING (string)->data,
+ XSTRING (string)->size_byte);
/* If all the chars are ASCII, STRING is already suitable. */
if (newlen != XSTRING (string)->size_byte)
{