Fixed warnings on %lld and %llu
Revert Warnings fix as it works only for C99 so keep the old version with warnings.
Merge branch 'master' of git://github.com/mossmann/hackrf
hackrf_spiflash added checks & error on fileopen() error for read & write.
Merge pull request #74 from TitanMKD/master

Fix management hackrf_spiflash invalid filename or error to open for read/write