Function mbvalidate

src/fe_utils/mbprint.c:391–405

* Encoding validation: delete any unvalidatable characters from the string * * This seems redundant with existing functionality elsewhere? */

 * This seems redundant with existing functionality elsewhere?
 */
unsigned char *
mbvalidate(unsigned char *pwcs, int encoding)
{
	if (encoding == PG_UTF8)
		mb_utf_validate(pwcs);
	else
	{
		/*
		 * other encodings needing validation should add their own routines
		 * here
		 */
	}

	return pwcs;
}