Governor Jindal says he'll propose a standstill funding formula for public schools next year.   He says he'll recommend against any cuts to the formula that divvies up money among the state's 70 school districts, even as colleges and health services are on the chopping block. If The Board of Elementary and Secondary Education and lawmakers agree, it will be the third year in a row without additional money for districts, after years of annual 2.75 percent increases.