Lack update of read_end_offset in shift_file (tcpip.cpp)

[aasselin]

at

tcpflow/src/tcpip.cpp

Line 448 in 6fd956d

bytes_to_move -= bytes_this_time;

there should be an additional line:
read_end_offset -= bytes_this_time;

the code won't work if the existing data in the file is longer than buffer size

(the SO post referenced near the shift_file function was updated with a comment)
Regards