This code made silent assumption that first fields in direntry are
exactly 14 bytes - this was fine, except would break as soon as anyone
would touch the struct (or e.g. if a compiler would lack support for
packed structures and inject some padding in there); rewrite the copy
code to follow the same pattern as other fields - now the code will be
fine even if someone will change fields in the direntry struct.
Fixes 2 PVS static analysis issues (buffer underflow on src and dst).
c619445003
