musl regression tests

["Kirill Ternosvky" <kternovsky@yandex.ru>]

/* FILE: scanf-nullbyte-char.c
/*
  Commit: ef5507867b59d19f21437970e87b5d0415c07b2e
  scanf should not append null byte after scanning %c
*/
#include <stdio.h>
#include "test.h"

int main(void)
{
	char target_buffer[2] = { 'a', 'a' };
	char source_buffer = 'b';

	sscanf(&source_buffer, "%c", &target_buffer);

	if(target_buffer[1] != 'a' && !target_buffer[1])
	{
		t_error("scanf stored null byte for %%c conversion\n");
	}

	return 0;
}