tfc_say(" shorthex: with -H, do not print printable characters, dump only hex string.");
tfc_say(" logfile: (same as -o) redirect all messages to logfile instead of stderr.");
tfc_say(" iobs=val: set IO block size value. Must not exceed %u bytes.", TFC_U(TFC_BLKSIZE));
tfc_say(" shorthex: with -H, do not print printable characters, dump only hex string.");
tfc_say(" logfile: (same as -o) redirect all messages to logfile instead of stderr.");
tfc_say(" iobs=val: set IO block size value. Must not exceed %u bytes.", TFC_U(TFC_BLKSIZE));