Fix checksum error with bytes < 0x10.
Fix checksum error with bytes < 0x10.

offner/scalatra,lightvector/scalatra,dozed/scalatra,Alefas/Scalatra,lloydmeta/scalatra,lightvector/scalatra,offner/scalatra,0xfaded/scalatra,lloydmeta/scalatra,offner/scalatra,lzpfmh/scalatra,0xfaded/scalatra,lzpfmh/scalatra,dozed/scalatra,seratch/scalatra,dozed/scalatra,lightvector/scalatra,Alefas/Scalatra,seratch/scalatra,seratch/scalatra,Alefas/Scalatra,lzpfmh/scalatra