parser: fix overflowing integer type options

If we use bs=4g, the parser will happily take it since it shares
the data type with unsigned long long options. Make sure that
FIO_OPT_INT types have a cap of UINT_MAX, if they haven't set
a lower limit.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
1 file changed