Function re__strncopy

extern/editline/src/refresh.c:441–447

re__strncopy(): * Like strncpy without padding. */

 *	Like strncpy without padding.
 */
private void
re__strncopy(Char *a, Char *b, size_t n)
{

	while (n-- && *b)
		*a++ = *b++;
}

/* re_clear_eol():
 *	Find the number of characters we need to clear till the end of line